It's offtopic but mind explaining this? I understand it for multitarget due to multidotting par excellence but our warlock refrain to play affliction for heavy aoe because both demo and destro provide similar if not better results when linked to the new legendary cloak but are way easier to play (less attention time for dottimers = more attention time for playing hearthstone on tablet errr learning new encounter).
Our dps warr also played arms everywhere (it's normalmode after all) and was quite happy with the result of spamming tc/bladestorm and jumping around mindlessly for 54 seconds, waiting for the next bladestorm
Prot felt slightly less solid as on the ptr due to the last minute bladestorm nerf, but i had a blast on trash when my co-tank (monk) died on every pull - he still pulled aggro every time with a haze+kegsmash+breath of fire combo - and i just spammed block/barrier+majors afterwards, laughing.