Presenting made up stories as authentic is by no means a new idea. To say it's an "evolution of artistic expression" is to give this piece and its author far too much credit. You're right, it does not matter if it is real or fake, but it absolutely matters if it is believable. You and I have read and believed many made up stories in our lifetime. Our instinct is to believe what we read. There could not have been a greater failure on the writer's part than to present us a piece that forces us to question its authenticity. The writer should give us no choice but to believe. Regardless of if the piece is true or not.