With all of the GCD healing tools WHM has, i'd like to see them go all the way and make a GCD based healer, who doesn't mind dropping GCD heals due to having damage dealing oGCD actions.

For example, we keep Stone and Aero as spells, but still get Dia and Glare as 20-30 second 3 charge oCGDs. Misery is now oGCD. In exchange, Tetra is removed, or maybe changed to a singe-target version of old or new Plenary. Fluid Aura deals damage again. Stuff like that.