This is a load of bull. You remove all those top OU, then what? Oh look, suddenly every team has Starmie, Blissey, Skarm again, P-Z. Whatever, then you say hey these guys are all too powerful for OU, but not good enough for TOU, so they get dumped in an intermediate tier: too good for OU but not quite as good as TOU, or TGFOUBNQAGATOU for short.
Then you get a new load of things rising to the top. Whatever, soon you get fed up of them and dump them in another intermediate tier. Eventually, we're left with ten or so tiers, each with twelve Pokémon in. So now we have a totally fractured metagame that can be analysed very accurately because there's only about four teams you can use in each tier any way. Then some bright spark says, hey why not conglomerate all of these similar-strength Pokémon into one tier and we're back where we started.
The point of establishing TOU is to reach a point where the OU tier is composed of the greatest amount of usable pokemon. The problem with the 600's, dragons etc. is that they force over-centralization. Thus, once the over-centralizing pokemon are removed, a diverse metagame would be achieved with plenty of options. At this point elimination into TOU would be stopped. All remaining pokemon would be in OU.
Also, it is probable that TOU would simply be made up of the pokemon in the OU tier posted by Surgo. Thus, it may be that many people prefer to play a metagame with Garchomp etc. included, while those who prefer a different metagame would have OU to choose from.






