tl;dr: We don't like Smogon, they're acting hastily and molding everything the way they want it to be instead of letting things work out. A swift ban is the quickest solution to anything. See: Extreme League.
The ideal metagame you speak of is not unlike the Laissez-faire idea in economics, nor the social darwinism theory; Leave it alone and let things handle themselves, and stuff that works will rise up, stuff that doesn't will die out. You want a "survival of the fittest" metagame, yes? In this case, we speak of weather, namely Rain. Obviously enough, it's already taken over. Limitations are fine, but banning ANYTHING entirely solves nothing. Counters exist, people are just too lazy to find and use them. Shadow Tag Shandera was banned almost immediately, when a simple Shed Shell ruins it. Minus Shadow Tag, nobody knows what they would do with their precious chandelier. And Inconsistent? It's entirely based on luck. If it lowers an important stat (which is more than likely), you wait until it comes back or you die. If Inconsistent didn't raise Evasion -and even then, it's a matter of luck to deal with- nobody would care about it. I've said this earlier. But nobody likes that so, hey, ban it. What else, what else... Eh, I guess that's all that matters. The Swift Swim thing is ridiculous; I think that's been covered already, more than enough. Everything has its counters, and Swift Swim is no exception. They're destroying a combo that was the only thing letting a few Pokemon even be useable (Ex: Armaldo, Tsunbeaa). Now Rain teams will become even more specific and predictable.
... This is what they want, I'm sure. It's not a bad concept but they're going about it the wrong way.
But, whatever, I have weird opinions; Erufuun and Doryuuzu are nothing to me and Ditto is my worst nightmare.
If what you mean by all this, Ame, is that we're doing our own thing regardless of what the leading authority (read: overcentralized little- ... you get it) says... well, I've always done that. All for it. In fact, I made it a point NOT to play OU 99% of the time in 4th gen for that very reason. I was sick of seeing Heatran, Azelf, Zapdos, Scizor and Blissey on every team. And yet I dealt with it and won quite a few times to boot.
It exists, use it. That's what I think. People will always have something to complain about.