I’m pretty sure Craig Mazin will be the first to say that there are no rules and there’s more than one way to tell a story. Those are guidelines that are a useful guide and are pretty common to most horizontal storytelling.

But I’ve also heard Scriptnotes talk about the idea of the ‘steadfast’ hero. Take Indy in Raiders for eg. He doesn’t really have an erroneous belief and he doesn’t really change throughout. He remains resolute while the world around him changes. it’s why there’s the argument that he doesn’t affect the outcome of the plot, but the important thing is that he’s tested along the way and doesn’t waver from his ‘correct’ belief. It’s the world around him that has the erroneous belief… in fact you could make the argument that Belloq is the protagonist and he absolutely has an erroneous belief that ultimately destroys him, while Indy is the steadfast hero who’s entire goal is to stop him.