I'm glad you found the first section obvious -- I do, too, but I've gotten some pushback in this very community when posting the idea in an open thread a few months back. I think there are many people for whom the idea is non-obvious. (Also, I probably presented it better this time around.)

Note that the first point applies both to "things your brain thinks are generally enjoyable" and "end-values in your utility function", though games in which you should change the latter can get pretty contrived.

I'm glad you stuck around for the later sections!