I think you're 100% correct that it would not be work of value. On the other hand, "The algorithm thinks this will be like that other thing people like" sounds like the exact model used for the majority of film and television today. Not least, this terrible rendition of Foundation.
The most valuable thing would be the hilarious errors. When Gandalf shows up in Star Wars or darth vader is replaced with a ring wraith kind of thing. I’m sure this fanfiction exists somewhere already though.
