Why remove the trailer scenes?

[Pig]

This is something I found really annoying about the game, and I for one really enjoyed the game.

Why remove the scenes from the trailer? The cage scene looked really scary and the scene with the door being smashed was good too. I feel like if they at kept these scenes the game would have been a little better. I know some trailers for movies have footage that was shot specifically for trailers, so is that what happened here? Were they never in the game to begin with? But even then, why? Even if they were last thoughts, I thought both scenes looked incredibly good and frightening. I was expecting the first encounter with the monster to be the scene with the door, simply because you had to hide and you wouldn't have fully seen the monster which would have kept the intensity up.

I just don't really understand why they WOULDN'T include the scenes. Did they not want to have to many scenes with the monsters? Because there's really not that many in the game already so I find that kind of silly. Or did they just want to keep you guessing? But then not including both scenes is rather disappointing.

Thoughts?