I'm also a healer main and my objection is that a hotbar I've set up to handle 80+ WHM beautifully, that feels very good to play with, is completely unusable at level 50. It's not that it's underpowered; it's that you aren't using the same buttons on your hotbar to heal with while leveling that you are in 80+ content. If the potencies were massively lowered when synced down, that would be fine, but the Afflatus trio, Divine Benison, and Tetragrammaton are your go to heals at higher levels and those buttons are just grayed out in the majority of content.