Healer role design change?

[Shurrikhan]

I'm having a real hard time thinking of ways to fit a genuine 'your damage amount determines your heal amount' healer into a 'save every damage cooldown for 60/120s windows or you're griefing' combat design.

Simple.

Consider: What's the average frequency of an oGCD heal, which otherwise layers your healing 'burst' available? (Hint: It's not something bankable all the way to every 120s window.)

So long as you have a fair amount of dynamism outside of what can be banked for the 2-minute raidbuffs cycle, there's no issue with having a damage-based-healer even in a raidbuff-cycle-obsessed meta.
And, if a damage-based-healer were to offer even half the amount of healing control as a traditional healer, it would necessarily have that degree of outside-2-min-bursts dynamism.

It's a non-issue, as long as the job doesn't insist on leaving the 'damage-based healing' component as barebone and poorly situated as it is on SGE (where, again, it's more a variant of a periodic heal, not damage-based-healing, since it in no way scales with damage -- only with offensive casts).