Ah ha! The author realized that a village full of artists selling their art to each other would be nonsense. But didn't stop to notice that a whole world of people like that would be just as surreal.
That's not just a minor problem, it blows the whole scheme apart. Attention economies are always very winner-take-all, and become more so as you remove barriers. If you relieve people of all tasks except showing off to each other, that will create cutthroat competition for attention where only a small minority can ever flourish. In my eyes that's much worse than the current situation, where an uninteresting person can still become worthwhile to others by doing necessary work.
The monumentally hard part of writing any utopia is fulfilling people's need to be needed. Writers need to get serious about that challenge, instead of talking about bread and circuses for the thousandth time.