I'm about to say something I know you guys aren't going to like... but...
Knowing the psychology of the Devs, I suspect you guys may be overplaying the Healers need to DPS now that there's no Cleric Stance portion...
I have a sneaky suspicion... that the Healer job damage intentionally got an overall nerf when they swapped it over to Mind based.
While I am not someone who says Healers should never DPS... have noticed a consistent view or direction from the Dev team on this.
They have intended it to be optional, not required... and if you make it required at a playerbase level, they're likely to nerf it even more.
So you really might want to lighten up on it a bit.