Lol.
Its smoother to play and should feel much better raid tanking.
For the current M+ implementation Prot will remain the worst/hardest due to affixes and unavoidable damage.
In beta the sky was falling and VDH was OP best 5 man tank , yet blood still dominates because it kept its self sustain and prot has next to zero.
At 380 my DH melts on pulls where my prot lols and face tanks it at 370 ,however certain affixes and unavoidable damage puts my prot in fml mode.
I just cant see how they make prot "good" in M+ without it being brokenly OP.
Its poor class design plain and simple.