I'm pointing out that the model has a piece missing - the input from the user. You can't just flippantly dismiss it, because input from the user is a crucial part of recreating the works the model is supposedly copying. It's an important factor to consider, because any digital painting program will let you recreate any art work with the correct user input.
It's not sufficient to just consider whether it can reproduce an image, but also how much user input was required to do so.