I think you are over thinking about this.
According to me this "follower" is just here because the paladin can become an oathbreaker.
The game needs a NPC to explain that + to allow players to change their oath again.
I just hope he will not stay in camp after act 1. Some choices should be definitive at some point and I guess you cannot be an evil paladin indefinitely and pay to become good again when it suits you.
Last edited by Maximuuus; 19/12/22 10:11 PM.