Can tell the OP is a post-WotlK player, since he magically forgets that the exact same thing happened with 60 -> 70, and from 70 -> 80 wherein everything turned out fine; Yes, there were other bridge patches before this, and WoW didn't magically poof into existence with two expansions. Most post-WotlK nubs wouldn't recall that one week BT was nigh unpuggable on lower population servers, and the next week people were pugging up to Illidari Council. Hell, I remember pugging Kael'thas at 70 post-bridge patch.