This wouldn't even be a problem if Outrage wasn't upgraded to 120 power and Draco Meteor wasn't created. Dragon Claw and Pulse are no big deal, they reliably do decent damage to almost everything. Outrage and Draco Meteor reliably do severe damage to almost everything. Big difference. I wish we could just ban them instead, but then you get arguments starting like "Why can't Altaria still use it? It's not broken" and it gets too complicated.It's Mence's lack of any definitive counter, not it's typing, that made it rise. And is the reason why we are here now. It's not that Dragons overcentralize the game, it's that the CURRENT Dragons do.
Somewhat off-topic, B&W could add a new type to nerf DPP Dragon, Steel, or even Water, just like GSC added Dark and Steel to balance RBY Psychic.