Allied abilities that could wipe anything have been purposely nerfed so it wouldn't happen again.
Again I can't help but compare this topic and people arguments with the RAM-IL2's various topics. It is fine and only skill when you manage to pull out a CTP but OP and no skill needed when its a RAM-IL2 combo.
They are both cancerus but ram and ił2 combo wipe only one unit not whole army