Cleric Stance Discussion - Is it needed?

[Ogulbuk]

Could also fall into the trap of one healer solo-healing while the other goes full-time DPS, with the DPS healer yelling at his co healer to top the party faster to keep up the damage buff.

Already been in raids where one of the healers refuse to turn off Cleric. As for overhealing, well, at least that makes sure the healer is doing his primary job, and is not unlike people that refresh all their 30 second DoTs every 9 seconds.

If I was to nitpick the idea myself, Id say the biggest issue with it is solo play, when Cleric is the most needed, you are unlikely to be full HP because you actually got agro.