Honestly, looking at the arguments on the healer forums lately, I have to ask, "Why are we settling for just one aspect?".

More than one single aspect has to change to truly fix healers:
1) Healing requirements and healing kit bloat
2) Lack of kit interactivity and uselessness of MP
3) Barebones damage kit and lack of skill ceiling
4) Encounter design

We're going to need all of this to change for healers to actually feel like they matter again, anything less is just a band-aid and nothing but temporary satisfaction.