I don't really see Minthara as having a redemption arc like Shadowheart. If there were two BG3 games so she had more time to change, a tentative maybe on that. If people want a nuanced romanceable drow lady, Viconia in BG2 is the gold standard.

My understanding from what I've seen of Minthara is even though she expresses some potential remorse for the raid, she is still pretty evil? Like she has a code of honor, but she doesn't have much empathy for anyone who isn't the PC. I love her character, but I'm not sure that putting in a "good path" for her really fits the character. (Though I admit it's hard to want to recruit her when the goblins are so unlikeable and you miss out on so much other content. IMO the evil path just needs some more content if that's ever possible to implement).