Great little book, had it recommended to me by a fantastic music teacher of mine in graduate school.
I appreciated it for giving a clearly articulated alternative to zero sum competitive games. It helped me think about the playfulness of cooperative creativity in a new more holistic way, as well as the idea that it’s worth doing things that you’ll never reach an end of.
I don’t doubt that if I read it again I’d share your criticisms though, it’s a thin volume with a very sweet idea at the core of it, at the end of the day.