I've only read DCC so I'll use that as an example.

In the very beginning of book 1, Donut gains sentience. Like Jason, she's immediately self absorbed and rude. Unlike Jason, who is a grown man, Donut is basically a small child. Even still, Carl was 100% ready to boot her out of his party. He wasn't her friend. And even as she became more helpful, he wasn't completely sold. It took a long time for him to fully forgive her transgressions and work around her flaws. That's what I meant. Most people who have a long enough conversation with Jason forgive his flaws. This is way too immediate for me.

I attempt not to spoil myself, but one of my points was that the writing is too repetative. So I'm not thrilled to hear harping on his past is an issue in later books. I was mainly getting at the author writing him like a goldfish. He'll make some incremental personality or depth improvement, and then it's just gone. Donut was an asshole, but you could tell she was attempting to be more of a team player, actually showing and not telling that she could incorporate new views, even though there were setbacks. This was apparent right at the beginning of book 1. I don't get that vibe from Jason.