To start with they didn't need to rework healers at all if they want them to DPS less or none at all.

The key here is to rework encounters in the game so there are more unavoidable damage aswell as increased incoming damage overall. That'll force healers to actually heal. It's just a matter of balancing the amount and pace of the incoming damage and you will have healers more/less bussy.

The issue with that is that it would require a lot of work from their side and that would increase the game difficulty a notch... or two.

Another thing is that they should stop giving healers oGCDs. It's good to have 1 or 2 but if you keep giving healers more and more oGCDs you are just opening more and more windows for them to deal damage... to the point where you find healers now "failing" at their job if they can't handle healing just with oGCDs.

They either have to accept their error/lack of planning-design or straight forward say they lied to us and just wanted to make healers a boring class to DPS with in the hopes that people would stop doing it.

The situation is not fun at all. I am not playing a healer this expansion anymore... not because I am angry but because I don't enjoy it anymore.