They just completely fucked leveling as a whole. Questing is quite a bit slower than I can remember. Running dungeons normally is just painful, even though they increased experience (after the initial nerf). Boosting is slow too, but it's just less slow.
I think someone here mentioned it before but them trying to make older dungeons more interesting cannot be accomplished unless they give us back our low level abilities. You can't just give shit more HP and expect that will force players to not ignore mechanics in some meaningful way. Some classes don't even get a fucking interrupt until level 80 thanks to the skill paring they did all those expansions ago (Hi balance druid!). I mean, having a 2 ability rotation until level 65 is not very fun, so when you also force fights to take longer while only giving me 2 buttons to press... well that's not gonna go over well. I already try to find the fastest way to max level anyway, and now I'm going to try to break the game as much as I can because leveling the old fashioned way just sucks now.