Yeah, now his "bad" path is better for him (and the player) than the "good" path, both gameplay and epilogue wise.

I'm personally fine with him staying a vampire. His problem was always with Cazador, not vampirism, and he seems to appreciate the possibility of a very long life. Man survived 200 years of Cazador and a near end of the world, he'll be fine chilling in Baldur's Gate. Especially when he's known as part of the group of people who saved the city and the Gur monster hunters promised to leave him alone.

But that absolute atrocity of his ending scene, that needs to go. I don't remember any other game I played that would have given a more tone deaf ending to a character.