Originally Posted by
Simca
Dunno.
For Bear, it's really not important (and if the armor buff is not a tooltip fix, then it is a buff). Sure, your damage got nerfed, but who really cares about that? Blizzard's Vengeance mechanic throws like 105810581 AP at you, you could practically auto-attack for threat. Almost all progression tanks are already avoiding hit and expertise like the plague for that reason. Ferals were already the highest DPS tank on every fight besides Magmaw according to WoL.
For Cats, it's probably a dps decrease, but likely nothing incredibly massive. I imagine they'll adjust for it in a later PTR patch as there is still a lot of stuff missing in this one (Chaotic meta gem fix plox).
Edited to adjust for the new patch notes and comments made towards this post.