I agree, I think the last change necessary is either take Frost Shock off shared CD or make flame shock/earth shock slow.
OT: Yeah, I'd be fine with pures getting some healing from it... but honestly, I think they should have battle fatigue scale differently for spec types, not PvP Power. Such ass: Heals: 50% Hybrids 25-35%(whatevers balanced), and pure dps 0(all of their heals are % heals and can be balanced as such.)