Sorry to hear that mate.

I dont play a healer class any more, did heal a bit on my paladin in vanilla and since deleted him, but that is a different story.
As a CC class (rogue), i am glad they brought back CC into dungeons. It has been too long, in my opinion, since rogues were asked to do more than just dps. Gone are the days in which we had to spend points in our talents to get 3/3 in imp sap so we stayed in stealth after sap

If i ever encounter your healer in a run, you will see me CC for ya anytime mate