I don't get this, Minthara is evil so her motivations are evil and she doesn't really need you so it makes sense that you would have to be evil and position yourself to recruit her. Just as Halsin is good and it makes sense for him to abandon you if you position yourself as evil, they are with sequences of your choices and let's not forget that this is a game of choices. For me, the game would lose all its grace and meaning without these details, and even more so when one of the things that the community asks for the most all the time is to have many more choices in all aspects of the game.