I don't belive that's true. At least I hope Larian understands that the reason she comes out at the bottom is her rep for being buggy and players having a difficult time reqruiting her. New player does not (at least I did not in my blind play) know she is one of companions you can get unless they are spoiled on the story or go evil from the beginning.
I believe that if Minthara was up to par with all the other companions she would throne right up there, maybe even past Astarion.
She is a good character, the potential in her is huge. I can see it and I hope Larian sees it. Give her a new romance scene, give her some general love, more weight on her relationship with Orin. She could be amazing, and the players would flock to her.
