This looks like an indie production made by someone who had some kind of "vision" but no idea for an actual game.
It's shallow, boring and not even interesting to look at (art style, colors, it's like the game was bored with itself).
You crawl through this mess to recoup whatever investment you made into it and delete it from your hard drive as soon as you see the end credits. A whole 40GB of it, so not that much.
So why a physical release? It makes no sense.