I think WHM badly needs some new Lily heals as well as an oGCD that generates one or more on demand. The Lily system only has a Medica and Cure II clone, while both Aetherflow and Addersgall get 4 heals each, 2 being extremely strong. Ideally we'd have 4 Lily heals, one roughly every 20 seconds.

Misery is a tricky one since it will always be better to hold Lilies for downtime as long as it exists. As much as a big nuke can feel fun for big numbers, perhaps a better idea would be to have Afflatus heals additionally "drain" Aether from the nearest target within 25y in the form of 310 potency damage, then the Blood Lily becomes a 310 aoe with no fall off that heals allies for a large amount of potency, similar to Pneuma.

Liturgy's issue for me is the cooldown. I'd reduce the potency of each stack to 300 and the cooldown to 2 minutes, as well as a detonate function, allowing it to line up with mechanics more easily and become flexible.