It varies from person to person I suppose. What you find engaging as a healer is not going to be the same for me. If I'm playing a healer, I want to be concerned with engaging with my tool kit, where it be efficiently healing damage utilizing the minimal amount of resources or if I am playing more of shield healer then properly shielding damage in a way to mitigate the most amount of damage utilizing the minimal amount of resources. For me damage is a low priority thing for me. It's cool to have time to do some damage but if I wanted to deal damage, I'd just play a DPS right? That being said, I am a fan when damage is incorporated into the kit like how SGE functions. Though I wish it was more like how a disc priest in WoW functions.