Healers that don't want to DPS are like DPSes who refuse to move out of AoEs.

[Rubiss]

Funny you say that, because just moments ago, as my static and I finally downed A11S, aside from a Combust I managed to cast perhaps 3 times in that entire fight, and not even with Cleric Stance on, I spent the entirety of it performing my primary function as the main healer. I'd rather keep my party alive to DPS than possibly overdo it trying to prove a point or shoot for what's effectively "extra" damage. Granted, if you can heal do with with minimal impact to actually being a healer, go for it. Personally speaking, survival went up, and progression went further when I decided to focus on my core role.

Then you likely were not playing optimally at all.