it's still specific to each class. ferals, warriors pre-nerf, rets on occasion, can be overpowered as fuck while the rest of the melee's suffer. likewise, mages, hunters, spriests could be insane while locks could get their face caved in by melee. i don't think it's one or the other. some melee suck and some don't. throw in comp variation and the strengths and weaknesses of different comps and the only thing that is undeniable is that BM needs a nerf
I dont follow, thats typically how the game has always been, more or less. If you're referring to rogues, the class is built around setups and CDs so thats pretty much how it works.
MoP has pretty much amplified the importance of CDs, specifically dps CDs, which for some classes range from 2-3 minutes in cooldown, to the point where not having them up negates a chance for a kill opportunity with how powerful healing is. not everyone can play a hunter and have games end in a reasonable time and actually have kill opportunities in between cds