I disagree on the WoW comparison.

They put that cap in but then immediately realized everyone hated it.

They relaxed the cap so much that people can still easily pull 5-10x AoE dps vs single target (see surv hunters and their 3 million dps).

This is a GOOD thing.

Mass AoE has proven again and again fun for players. What they should do is make it so AoE isn't an afterthought and make everyone's AoEs awesome.