I feel like SGE already won as far as healers are concerned for having a new offensive action that is not gated behind a ridiculous cooldown.

Ideally, the AoE DoT will still be worth using in single target scenarios like Aero III was and stack with Eukrasian Dosis (Seems likely considering you can still see it expiring after the new DoT is applied in the trailer), but even if that isn't the case I'll at least have something else to press during dungeon spam.