i agree that in the beginning it was just the grandfathering of some old rules.but from gen 3 i think were the competitive metagame had started to become interesting and more people became attracted to it it was made clear why these moves weren't allowed.
Double team and minimize are banned becuase they where annoying as fuck, as with Shaymin, the way they played lead to an undesirable metagame, that no one wanted to play in, and in there good
opinion, we banned them. Now, sand veil is neither anywhere near as annoying as that, and its not broken, now if sand viel breaks a certain pokemon then you ban that pokemon, any only a pokemon is even close to that.
'cause even if they don't give you statistically big enough chances to have a constant winning streak they allow completely crazy scenarios to happen like someone very skilled losing by someone very unskilled just because the latter decided to use double team and the skilled player got unlucky.i don't think that this is supposed to happen in a competitive communitywhen a very good player plays against a very bad player 99,9% the good player must win.but this wouldn't be the case if these moves were allowed...
although in a smaller degree,sand veil and snow cloak do the same...they give the ability to players to win when they shoudn't...and the worst thing is that people can even abuse further this luck element to their own advantage by using substitute!so if i chose to make a batton bass team that has a sand veil sandslash (i chose sandslash instead of garchomp 'cause maybe i am a new player or because i don't like to use what everyone is using)as it's sweeper and i manage to get 1 or 2 misses when i batton pass the boosts to him that could very possibly mean the end for the opponent even though he might have played better...
or say i use the same sand veil sandslash as a spinner and i run a full stall team.you have a spinner in your team and you don't see any ghost in my team so you let me get some layers of spikes or t-spikes.later you come in and try to spin while a switch in to sandslash and you miss...then you try again to spin or to kill me and you miss again allowing me to either kill you or toxic you...eventually you lose the match 'cause luck wasn't on your side even though you were much more skilled...
even though one could argue that there are many times when games played even by equally skilled players very often are decided by hax such as an untiimely crit or a freeze that happens so rare that it can be added to the almost never happening case...the chances for a crit to happen are 6,25 percent.the chances for crit that matters greatly to happen are like 1 or 2 percent 'cause most of the hits that happen in a battle are resisted due to switching(see how close is the number to the 99% i mentioned above).
First off, sandslash is a terrible example, defensively I don't think in any teir anywhere, has sand veil hax with sandslash even cost them a game.
A good player will never win against a worse player 99.9% of the time, thats unrealistic, a simple critical hit hax, or a miss with fire blast can cause a loss of a game. Heck even the off chance that you won't get that 1HKO 4% of the time, might be your demise. And even outside of hax a worse player can win though odd move predictions and playstyle, and a random team that happens to beat the better player, even though overall the team is bad. At best you can say a better player will win 70%-80% of the time. The metagame does not exist to bring the best players to the top as its first goal, its made for the enjoyment and sport of the game. If you truely want to prove you are the best, overall, even with hax, you will win more then not.
the chance for a freeze is 10%.when you consider the fact that almost any poke that uses ice attacks with a freeze chance doesn't get stab(meaning that they are coverage moves)you will see that most of the times the players don't use the ice moves but their stab moves which have greater damage output.also a lot of pokes don't use ice beam and instead use hp ice...and anyway let's see how many pokes actually use ice moves with a chance to freeze.
in ou there are:politoed,jelicient(rarely),starmie,vaporeon,swampert and deoxys-s,tentacruel(very rare)!
so there are only 7 pokes which use these moves at all(some of them use it often some of them use it rarely).so the chances that a vital member of your team will get frozen by such a move are again very very low....
so we are finished with the most major instances of hax..there are other luck factors,less detrimental to the winning of the game like parahax or burnhax...but these effects are not so game breaking when they happen and they can be played around in most of the cases so again in 95% or more of the matches they don't appear anyway...
All I have to say to this is Garchomp is the only major sand viel pokemon out there in OU, thats even less then those 7 ice beamers. Thats even less of a hax chance as far as a metagame goes, and again, that is a pokemon.
but anyway all of these effects cannot be avoided because they happen uncontrollably and they also have other effetcs such as damage.so we cannot ban the moves that cause these forms oh hax 'cause they also do damage and there is nothing wrong with this.for a move to be banned every aspect of it must be unwanted.but in all these moves there is one wanted thing(damage) and one unwanted(hax) so we keep them this way.in the other way double team has only 1 effect(hax) which makes the possibility that the battle will get out of your control looking not so rare.and the same happens with sand veil(excpet that there must be sandstorm up).
Again, what about my flash and sand attack example? No one uses sand attack, but it is a choice that the opposing play makes, that effects the other persons chance of hitting, and certainly using sand attack isn't competitive, so why not ban that to under that logic? The fact is, it isn't, you don't go banning things, that have no place in being banned, banning Luvdisc+drizzle far far enough, we don't need all sorts of absurd combo bans running around, for even less of a problem.
if i am right and the evasion raising moves and items were banned due to the reasons that i am telling(meaning uncompetitiveness and not grandfathering which i think is the case)then according to the exact same logic a complex ban should be implemented as a further extention of the evasion clasue to include sand veil and snow cloak!but if these moves and these items were banned just because they were already banned from the past(and for none else reason)then we should clearly unban them and test them on every pokemon...
Double team makes every single pokemon that has it an annoyance, which is every pokemon in the game that can learn TMs. Surely you aren't comparing this to the few dozen pokemon with sand veil and snow cloak? And once again, it causes problems in all tiers, in every metagame. Sand veil isn't a problem in UU, neither is snow cloak. They aren't problem in Ubers either. Nor will they be in NU either, when it comes out. So what pokemon comes to be a problem here? Once again, a pokemon in OU, Garchomp, that it.