He stated that very clearly: the DPS race.
To the post:
The Burning Crusade was my favourite too. I loved all the slow gearing up, the attunements through all the raids (untill the removal of those) and the fights. I will say that the Burning Crusade was the best expansion I have played. Yes, the difficulty with some raid bosses and attunements sometimes caused problems, but this difficulty also made success and progress so much more meaningful. At least to me.
I don't like how you almost farm your way through the first couple of bosses today. Taking 2-3 bosses a week and getting the tier end bosses down so fast. I loved when you were either good enough or not good enough. Today the solution is heroic modes. Go kill the same boss, we gave it some steroids. I know this makes raiding possible for everyone, but it kills my experience so badly. It really, really, really kills the excitement for me. It becomes more of a MMO rather than an MMORPG.
Bottom line: Loved BC. And the way things are going now, the game wont reach that epic level again. But that's life. I can like it or find another game. I'm still playing though. Little, but still.