I agree.
Do you mean Mind?
I had thought about making it Mind at first, so then I didn't need CNJ's Cleric Stance but then I was worried that it wouldn't be very balanced compared to the other healers.
I would be worried about over healing while trying to do damage and generating too much aggro from said heals. >A>()
I figured that CNJ would potentially give Cleric Stance, Protect, Stone Skin, and Aero, while ACN would give Virus, Eye for an Eye, and Ruin.
I tried designed the spell cast times so that they wouldn't need THM's Swiftcast as badly.
PUG's Mantra and Internal Release do bring something interesting to the table but I thought the utility CNJ and ACN's Protect, Stone Skin, Virus, and Eye for an Eye brought more utility.