Sorry, I didn't mean to imply that you had to prove it. What I should have said, was why you considered it to be pretentious. But I don't quite follow you. I haven't followed any of the marketing for it outside of E3 and Paris Games Week, but what I saw there was simply the creators giving their vision for their game, and not once did I hear any of them imply that the game is anything more but a tool for creative people to create small games or art.
It's not really my type of game either, but I absolutely love that we get this kind of unique game. To me, these somewhat "out there" games is what makes the Playstation brand interesting. It's not just boring shooters. They actually do new stuff too.
I didn't mean to be rude to you, I just find that the word pretentious is often misused.