No it doesn't, which comment? None of them say that.

Nobody enjoys anything that isn't problem-solving, with debatable exceptions for drugs and hormones. Fun is learning. The learning is either subtle and inexplicit, or partly subtle and inexplicit. You engage with a medium, you interact with the work, you make edits, you learn stuff. If you're shepherding an AI then you do all that on a different level, in a different way, a way that isn't better as such. You're doing a different thing. (Meanwhile, the AI doesn't have any fun.)