There should always be an opportunity cost for healing. The sheer amount of oGCD healing and barriers that we have access to trivialises things as it is. If healing isn't about resource management, and if it isn't about knowing how to maximise your damage output while still successfully keeping everyone alive, then what's the challenge in being a healer? Anyone can do it then.

Just give everyone potions without recasts, let them heal themselves, and let healers be dps with a one button rotation. Then you can feel happy about your numbers without having to work for them.