I'm still a low level healer (35 whm). I try to dps while in dungeons, not because I don't want to heal, but because I think the whm job is designed with dpsing included in it, since we have Cleric Stance, dots and a couple nukes.

However, I don't really understand that design.
I consider Cleric Stance more an annoyance than an asset.
I need cleric stance to put dots on, but it sucks to hinder my reactivity to be able to perform a basic task like dotting.
And I don't need nuking, I do it because I have to go into Cleric stance for dots.

If I just ignore cleric stance in dungeons, I'll spend some time... doing nothing.

Cleric Stance is easy to use when everything goes right and pretty much wipes the party when something goes wrong.
I feel it punishes me too hard if I make a mistake or if someone else makes a mistake... yet I have to use it because the job is build around it.