New design philosophy on specialized classes?

WoWInsider has a very interesting post up on Blizzard's design of warriors. According to the author "Warriors are generally number two in everything, making them the best all purpose generalist tanks in the game". Oh great, as if more specialized classes weren't already disadvantaged enough with their lack of versatility compared to hybrid classes. Now Blizzard splits up tanking into several subcategories (AoE tanking, single boss tanking, etc.) and makes warriors not the best in any of these categories? Probably next step is to make priests the worst healers in the game, maybe using the spirit nerf. I'm suddenly dreading patch 3.1.