This story was not made with AI at all, not even a little bit, and its insulting that you would think that in the first place. Any errors or repeating phrases you see is completely human. I am one of his staff members and I've literally WATCHED him code, plan, and write everything out with my own eyes. What you see is his writing style, and AI literally copies how humans write, so it may 'look' like AI, but it isn't.
Julian has worked incredibly hard on this story, and just because you find the current plot confusing or think is changing too quickly is a matter of opinion and not AI.