True enough, as far as it goes. But those other openings can be beaten as well, with prediction.
Look, deoxys turns everything into a heavy prediction war, but if you do kill its spinblocker, you can usually spin afterwards.
And besides, pokemon IS a game of chess, and one opening is beaten by another. Let's ban rotom-w and nattorei- they can do that too!!!!!!!!
Well, in Chess, you don't start out at a big disadvantage without being able to stop it...in a way, White controls what Black plays.
Sicilian screws you over? Well, you don't really need to face it as you can start out with 1.d4.
Nimzo-Indian got you down? Just play 1.e4
Yes, I get your point regardless.
Rotom-W and Ferrothorn turn the game into a prediction war? Not really.
Rotom-W is annoying, but he's easily walled, can't set up hazards, etc.
Ferrothorn has decent attack, but his coverage sucks and he still has trouble with Grass/Fire types and such. Slow shit like Reuniclus that can set up in his face is also bad. Hell, dragons with Substitute/Taunt kinda rape him especially since he's so slow.
Deo-S on the other hand...well, he can carry SR, Spikes, Taunt, Magic Coat, Light Screen, Reflect, Superpower, HP Fire, Psycho Boost or Thunder(bolt).
Choose any 4 of those and you're on your way :)
Scizor gets you down? You use HP Fire.
T-tar trolls you? You use Superpower.
You want to use a cookie-cutter team of 5 sweepers? Screen dat shit and you still have the option of carrying an attack or two :D