But can we just remove gear? Everything becomes cosmetic, and there is no more progression at endgame? Completely remove all semblance of this game being an RPG?

Twinning was about as hard as the levelling dungeons if you jump in immediately after clearing the MSQ, but that doesn't last long given the gear upgrades. Many would be disappointed if that was removed in general, including myself. It's nice having your avatar get stronger alongside you building skill - it's an RPG specific joy.

In the end, perhaps engaging pure healing cannot exist along character progression.