Healer DPS isn't really a chore, but the way it's implemented leaves a lot to be desired. Spamming cure is functionally no different from spamming Stone. I don't see why anybody would enjoy it more from a gameplay perspective. Even from a "feel" or "theme" perspective that's a pretty hollow reason for preferring to press a healing button over a DPS one. One makes a bar go up. Other makes a bar go down.

Healing is at its most fun when you have to juggle tasks. Current content doesn't really give you much to juggle. Debuff removal is practically non existent since cleanses were thrown into cross role and practically all debuffs can't be removed anyway. Heals are immensely powerful and incoming damage is relatively low outside of spikes. So we're left with optimal "rotations" that boil down to "maintain dots, spam nuke, throw out a heal when necessary", which don't really help things. So they either need to change up the way they make content, or change up how healers do DPS.