Is it just me, or are old dungeons kind of a joke now? In almost all of the dungeons under level 70 that I've run since the start of 5.0, enemies' health bars have been dropping extremely fast and I don't know why. Anyone else notice this?

I have a theory as to why. Could be because the tanks no longer have the damage reduction from tank stance, as well as healers who have an aoe nuke that no longer has such a long cast time. And it seems the devs didn't rebalance older content to account for this. That's just me though.

Or did everyone suddenly become really good at their rotations? Nah that couldn't be it