Even if you made the healer savage gear free, I don't think that would solve the issue...

How you actually fix the problem is that you make healers more playable.
With the way the fights and jobs are designed, you don't really get to play the game as a healer.

We don't really get to deal damage, and most fights damage from the boss occurs so occasionally that we're barely healing. So we're just there, filling a slot in the party.

Also, solo duties in quests as healer are also absolutely terrible as they're almost all balanced for a DPS role... Mostly just ShB/EW Role Quest ones are the only ones that aren't intended to be done a DPS...