There massive value in AI PR's.
If a feature and ignored, it can forked to provide more value to the users.
If unaccepted bugfixes, the maintainers are just silly. They need to be forked off.
I mean, aren't you kind of proving the poster's point?
Fork away. If you want to put in the meaningful effort required to maintain and improve upon a project as significant as Godot, and feel that AI is a mechanism you want in order to do so, go for it. Clearly, the maintainers don't feel that that's the best approach to create the product they want to create, and they are not required to accede to the sense of entitlement of the community.
It's interesting to see this perspective in the wild. In the age of AI I wonder what "massive value" your PR is bringing to the maintainer. $1 worth of tokens?