I got this the other day with my team and i just went ahead and did it (was planning on afking out on first wipe), dunno if they fixed something but didnt' seem too bad and I 1 shot it all without a healer and a multicomp team - pally tank, mage, boomkin, 2x ele shamans. last boss is still pretty crazy without a dedicated healer but spreading out and burning boss works well, and a pally tank is also just superb for holy wrath.