Originally Posted by
Temperance Brennan
no, the reason why Blizzard removed passive cleaves was because they wanted single target and AoE rotations to feel and play different. every class uses a different rotation depending on the presence of adds, and often even depending on the amount of adds, whether it's multidotting, swapping one skill for another, or even changing all abilities.
the main reason why AoE in single target is a nuisance is because it means you cannot use that skill when there's a target nearby you should not hit, like CCs or dangerous reactive skills. that's why they removed it from paladins and warriors while leaving it there for frost DKs, because they can still use icy touch. meanwhile, the unholy disease AoE on crit was removed. and I can't remember any others which were left intact.