That's what I'm getting at regarding emulating the Mudras... the Geomancer could use rituals to create effects on the ground influencing their stance and spells. Obviously it'd differ to BLU if they made it a healer based on its role alone.

I'm not exactly chomping at the bits to see GEO (for me, Necromancer or some kind of Void mage if BLM doesn't go that route is a bigger priority), and I think a chemist potion brewer could also make a good healer, but at the same time I don't think there's any strong impediments to it and there are ways they could make it work, particularly if they refined the mechanics involved.