The goal is not to make people happy, it is to create a desirable metagame that is fun and fair to play in.
How can you argue that you're trying to make the metagame fun if you're goal isn't happy people? I understand that it's absolutely insane to assumme you can just walk in and say "I don't like weather, give me a tier", and assume further that everyone has that right, but something I'm a little lost on is that clause =/= tier, though I can see where outwardly the difference in selectible stratagies and pokemon would essentially make it a tier in itself.
And I do agree that such an idea would cause a particualrly unfavorable divide in the suspect testing process, as weatherless teams would have signifigantly different threats, but at the same time I could argue that you(Woodchuck) can't sit there and argue that, on one hand, banning weather or making a non-weather tier/clause would only be satisfying a small group of the player-base, while then stating that such an act would cause a dramatic skew in OU and usage-stats.
You've effectively just said the group who wants weatherless play is too small to matter in the metagame for their opinions to be heard, yet their too large to be given their own playground because it will profoundly effect the overall statistics.
Much as I say when the topic of entry-hazards comes up: if THIS many people complain about it, it's clearly an issue. And I find it difficult to believe that this goal of a fun metagame can be met by telling the people who play in it to shut their mouths and deal with it, because it's not really a problem and they aren't worth the time it would take to fix it since thier happiness isn't a concern.
I think it's pretty self-evident, that no matter what path is chosen, there will be a portion of the player-base that will be unhappy with the decission. I personally love Drizzletoed, and I've never used him with Hydration or Swift-Swim pokemon. I think weather was a really poorly done mechanic in the past that perma-weather pokemon helped to find usage, and I think it would be absolutely terrible to ban weather just people are stubbornly against it while others depend on it like a crutch and can't win without it. Extremes will exist no matter what rules are in place, and so will complaints.
But at the same time, I DO think it's imperative to make a simple and effective way to safely allow some players to make a team without having to reserve anywhere from a single moveslot to a whole pokemon just for anti-weather, since there are already so many threats to prepair for and roles to fill.