The sad thing is modders have already made her recruitable even if you side with the grove on PC, but since I'm a PS5 andy, I'm out of luck
I don't know if there are several mods, I tried one but removed it again once Minthara got into the party, because the dialogs made no sense. Suddenly you talked about Ketheric Thorm as if you had already met him before ever getting to Moonrise towers. So it was very anti-immersive. I restarted on the evil path. Telling myself that killing the Tieflings in the grove was less gruesome than having them venture into the shadow cursed lands and become shadows themselves.
