Quote Originally Posted by MoroMurasaki View Post
I suppose we both interpreted the OP differently. If you're talking about places where you can perform well I suppose they're equal then as performance in either is basically a non-issue.
Performance in both is a very big issue. Both have mechanics with very much lethal effects and both can be screwed up beyond repair. Both require more activity than "spam while moving in a relatively small area on the field". There are varied numbers of people that can easily pick up the slack, but that does nothing, absolutely nothing, for people that actually care about their performance.

Some just don't want to be a dead weight. They will do the easier content first enough as to get the reflexes and such to a level that they can hold their own in a more difficult content. Not everything and not everyone in a game is about clearing. Learning parties in party finder are the best example of that, where clearing is secondary, getting your performance and knowledge of the fight up to par is the priority.