ok didt noticed that. but tbh, there is no real group dmg in p1+p2, so the protpala heal isnt much better on this fight
http://www.worldoflogs.com/reports/r...?s=1843&e=2273
30k hps with 70% overheal -> ~10k hps effective
dk tanks are not really bad, its just that sotr is so strong on so many bosses. and they will nerf battle healer by 33%. sotr nerf is just a joke, there is no real difference