Sorry, I guess I should put the <sarcasm> tags in my post next time ;) Well, the line about Hierophantic isnt that sarcastic... it does kinda suck now, so taking the stun off would make me actually use it more than once a blue moon.
The fact that our heals are still behind the wards and reactives AND the fact that we have basically no debuffs (unless you count the little elemental one on the DoT) is exactly the point -- giving us even more healing when we're only using a tiny percentage of it already isn't going to help that much.
re:
CriticalOvrLoad, nothing should change there. Those proc when you finish casting the spell, not when it actually heals for anything more than 0.