Being a healer, I can say that yes, we are OP and need to be nerfed.
Need to run out of resources once in awhile lol. Need be able to be silenced, not just one ability, and not just stunned till resolve fills up and get yourself, and others, back to full hp in a heart beat.
And yea, gear is big, as it is for everyone. Even when I had 13-14 k hp it was still rediculous and felt OP, with some gear it's just stupid.
Any healer who says we're not OP is either lying, or, and I say this with love, absolutely terrible at video games.