Your role is healing, what's confusing?
Looking at SCH (which i plan to play MSQ with) the only thing that changed was removal of miasma, bane, shadow flare - everything else is exactly the same, with the addition of new skills that augment what you're already doing.
You heal when necessery
Spam art of war in aoe
Biolysis and broil on single Target.
What's confusing?
WHM lost Aero, and get new atks instead.
Healing improved
What's confusing?
AST card game is simplified
What's confusing?
The point of the changes, was to make it less confusing.
The identity of healer, is to heal, so why do people act as if losing dps skills, hurts healer identity?
Don't get me wrong, it would be nice with more skills, but the second aspect is skill bloat - they remove skills every expansion, to add new ones - healers will lose dps skills in favor of heal/support.