Im against longrange-healing. This isnt WoW.
And Healers destroyed PvP in the later run. Because Blizz made them imbalanced so that the whiners would shut up. Cant say it nice since it wasnt nice.
It ruined the balance.
This game is less fantasy and more realism-focussed.
What means that a healer has to be nearly in Melee-Range to do the job.
And it should stay like this. I dont want to see cowards healing out of nowwhere and be annoying like hell.
Just play good enough, then you will live long enough to heal and even reanimate your dead comrades.