Like others have been saying, having access is not the same thing as easy. Everything should have an opportunity cost, one way or another.

You can solo, and spend your AP on skills that will help you solo and gain XP. The cost is that if you die you'll have to haul yourself back from the Aetheryte.

You can party, and spend some of your AP on raise abilities that will benefit downed party members. The cost is whatever skill that got replaced by that raise ability.