Well yes, he does not want to discuss the direction of developement. He decides that. If he thinks something is not helping, he won't do it.

So sure, taking part in the project would mean accepting his way of things.

So difficult to work with? Depends on your expectations I guess.

And the comment above could have been maybe written nicer, but I see it as a defense of "no, I don't need to accept your PR just because you put work in it, you should have checked with me first, before doing it"

Because he had those discussions quite often I think (I follow decelopement from time to time since quite a while)