It is a really interesting game!
It also looks amazing , is really polished, and has amazing sounds.
I couldn't figure out all of the puzzles, but the real problem is I didn't fully understand why my solutions to the first puzzles worked.
I really disagree with you that puzzles are about figuring out what you need to do. Of course you can make that kind of game and I like some games like that but they can be really frustrating and I believe that puzzles inherently should have all of the information shown to you. That's my problem with the witness. I played it for some time and really liked it but after a while stuff just became guessing what the hell Johnathan Blow expects me to do and where to go. And after hours of wandering around looking for clues to where I need to go next, I gave up.
This game is a much more linear so it avoid this problem or wandering around but it can be really frustrating, not understanding a thing, trying something and then suddenly getting taken from the level without any explanation, or maybe just dying once again to the depleting oxygen.
It is an amazing game, and I have no idea how you could make that in a week but I have a major disagreement with you about this. And I think it's even more of a risk in a jam game - when Fez does this to me, I am much more willing to go along with it and might try to figure stuff out for hours but I won't spend more than 20 minutes trying to figure out one jam game.