I'll just put in my own input here since this thread is going for a while.

The only thing I'd like to see from PI right now is a small duration boost to Confessions. Somewhere in the line of 12-15s instead of 10s. At least this gives the healer a bit more time to "cultivate" their confession stacks, if you will, depending on the fight.

I've made use of PI a decent amount of times outside of Savage raid too. Sure, I won't be using it basically on CD like I would in Savage, but any scenario a WHM can use Medica + PI over Medica II should be taken. This costs less MP and cast time and provides a higher up front heal. Yes it's less efficient but if you only need a 450 potency heal, why burn more time / MP onto a 700 or 850 potency heal? The entire WHM kit revolves around your oGCD heals and making use of this AoE augmentation oGCD fits the bill just that. Yes, it's no where near as good as Assize, Thin Air, or Tetra; but it's certainly not something worth dismissing either.