I think its the exact opposite. One of the best features of art, in any form, is that it offers different perspectives, viewpoints, ideas. Think of how many people changed something major in their life due to a song, a movie, a photograph. Now think of how little would happen if AI just repeated back what "it knows" you already like. Your entire life would just be a derivative of things you liked as a 6-year old. Nothing new, nothing challenging, nothing fresh.