ok, I think from the wording of those...
Prot will be so op O.o
First you get 26 out of 36 sec ShieldBlock active (18 sec because 3 charges SB and 8 sec because 4 charges SS) and then you get a 90% dmg reduce w/o cd?
I mean I often found Zen Med (Monk) absolutetly op, but that has a 3min cd, which is quite huge, so I guess that balanced it out... but no cd? wt...
PS the ShieldBlock thing... that is w/o talents, so if there is something like SnB, 100% uptime could be possible
Also the Gruul discussion: It's not like you go with 0 rage into the non-tanking-phase. You can bank your rage while tanking the boss, because SB is absolutely cheap now and then go with 100 (or near 100 Rage) into the Slice-phase... so if you need to soak 3 Slices, you need 120 Rage, I guess you can get the 20 missing Rage easily
PPS the guy under me
But you get 3 charges of SB during 36sec fighttime