Depends on how invested people are. There are fans of everything. In How to train your dragon their vikings and astride is blonde in the books. Now did they handle it well in the live action yep I think they did. They through a scene in their saying we are not just vikings but people from other kingdoms gathered to fight the dragons paraphrasing obviously. But I thought that was a good node to the fans saying yes it’s your story but we tweaked it. And fiction compared to reality I mean BBC casted a black women as one of their queens.