I have a different idea for Asylum.

Make it auto cleanse removable debuffs from party members that enter. Now WHM is suddenly the only healer that can reliably cleanse debuffs without wasting a GCD (besides Selene).

I also think having more skills like Assize is the way to go, in terms of the fact that Assize had a dual purpose depending on what stance you were in. Asylum could have been originally designed as a heal over time skill with Cleric Stance turned off, and DoT damage field with Cleric Stance turned on.