I still haven't finished the game, but I don't see how it matters whether the game is open ended or not. If you want to learn about all the different endings, you'll have to replay the game anyways.
I'm very much looking forward to playing through the whole game a couple of times.
never forget, it's critique on a very high level. i'd be happy if i could create such rooms. i wouldn't call it "fake" or "weak". i think the developers had to face a serious problem: either they used static shadows which wouldn't go well with the dynamic lighting, the day/night cycle and the physics, or they tried dynamic shadows on all objects which would have made the game playable on year 2012 machines. so they gave us a slider that allowed us to choose the shadow quality
So true. It's exactly why it doesn't make sense to call the engine outdated just because you don't like the choice they made.
Cheers