Maybe that'll be one of the things they change when they try to change the way healers work as a whole in the next expansion.

It's very weird that all aoe buffs are applied 1 at a time. I mean it creates an interesting effect but can be dangerous if you need emergency group heals.

Also, while they're at it can they throw in a visible range indicator that everyone can see so they can get into the heal before it goes off.