Blend said:
The important word there is "was". Yes, he admits that he was wrong in the past. He never seems to think that he could be wrong now. That's the thing that I see missing from his personality. In a year or two, he might admit that he was wrong about what he thought now, but he never doubts himself at the time that he is making the decision. And he never takes advice from others, which is another thing I dislike about him.
Of course, right after I posted I thought of this. It seems to me that Karsa has changed what he thinks, but not how he thinks. And it's doing the second that is evidence of real growth in a character to me.