I think the "truth as fiction" idea is consistent with Kuhn's theory. The old paradigms aren't refuted as much as they're replaced because they're not as valuable as the new one.

It's like being obsessed with one author, filmmaker, musician, or cuisine at one time, and finding a new obsession later on that replaces the old one. You don't bother to discredit the old obsession. You just find yourself moved by something new. You find a more compelling story or pastime.

Sometimes we don't like it when we discover that someone's been lying. There's Brian Williams who lost his credibility when he was caught exaggerating. And then there's Trump whose lies are taken for granted even by his cultists. It depends on the context and the expectations.

Indeed, autobiographies aren't necessarily the gospel truth. We often don't know ourselves as well as we think we do. We're more biased about ourselves than about anything else, so perhaps autobiographies are seldom literally true in all respects, unless they're written with an unusual lack of emotion or interest.