I get what you're saying, but if something is abused, logic says you find a way to balance against everything else.
Like what you said about Afflatus Purgation, I wouldn't care if it worked like Polymorph does in Wow. Where in I can break the poly with my purify skill, and if I take damage while Polymorphed, I turn back to myself. That way, it works for a purpose, but it can be countered. Also, Polymorph heals you while you are transformed, adding more balance to it.
As it is now, it's fish in a bucket trying to dodge a shotgun blast while being disorientated.
But I've said my peace with it. I'm done with it for the foreseeable future. I'll just CC for my next series rewards. This was my first time using Frontlines and going the lazy route, and it was nothing but misrable because of SquareEnix's incompetence towards balance and how skills interact with each other.
At least CC is quick, and because the teams constantly rotate, the games have variety. I just wish they knew that the rewards are borked. Seriously, if you only cared about series xp, it's faster to lose twice in 5 minutes than it is to win once. But that's an easy adjustment they still haven't made, lol.
I'm not kidding, btw. A win is 900, and a loss is 750 if I remember correctly. Setting that up is impossible. It's just a funny oversight.