I also disagree with your conclusion that an activity only has a point if discussed with others. A good deal of the best experiences in my life are things that were for my benefit alone, that I never thought to share with anyone else. And I'm a pretty social guy.
If you believe that art is communication (and I do) why _wouldn't_ you want to reflect on it or discuss it post 'consumption'?
You may argue that stones can be interesting without beeing works of art. But the generator above takes works of art as input and somehow takes the art out if it to some degree.
Spend 10 years as a sw dev, then went into VFX and design. Working in automotive design at a major OEM now.
I needed my career shifts really badly and wish the younger generation would have similar opportunities.
I'm currently not using AI or LLMs in any of my day-to-day work.