You can like dpsing or not, facts are that healer dps because of there are reals bigs downtime, regen and healing in general being really powerfull.
The idea to finally fix this would be to create new and more entertaining healing mechanics.
Besides, giving extra healing to dpsing healer would dig a bigger gap between dpsing healer and none. That's not what we should be focusing on.
Shinryu EX heads was a good start, not the best idea in the world indeed, but I wish they could keep going with this.
Heal checks right now are "everyone's life drop to 1hp and then raid aoe after" "3 raids aoe" "you need to max hp for this" and that's pretty much all.
This is a bit sad and boring in a way...