Yeah I figured as much. That why I said I don't know if it's accurate. But he did live through it and he was a consultant. So he probably told many of the smaller details correct. Just now the hero and villan aspect

I don't know about Accuracy per say but I do know that when westerns became a thing Wyatt Earp was a consultant for several silent era westerns. He became friends with a few western actors so im sure they at least got his perspective. Another thing I've always heard but im not sure about truth wise is that John Wayne met Earp when he was still a bit player in silent films and going by his birth name. He may have gleaned some knowledge from him as well