Honestly, a lot of the "fun" bits could be fixed by taking a page from some FFs and letting us mix/match abilities we've unlocked from the new jobs.
Like, I don't care about having all 6 or whatever cannon balls, but if I could take 3 and some kinda regen/heal?

Or, if they were playing with mechanics and trying things out, why WASN'T this the place to add reraise in some form?