I have noticed it can be a little more difficult to keep hate at times (in 60 dungeons) but overall it is fine. Flash does still generate good enmity, not just make mobs immune to blind. Shield Swipe has also been given an enmity boost, it was mostly forgotten but is quite potent when it procs. Just have to watch your mobs, cycle through rotations, see what your DPS are targeting.
An AoE enmity attack would be nice but it's not entirely necessary.
