Why does Amnesia have absolutely no idle movement?!

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I'm more wondering why Daniel is no corporeal for the player and light pass through him like he is nothing. It is really immersion breaker for some to see lack of any resemblance of the body expect one hand.

Probably would have been simply too much work for too little benefit... I mean there's a reason there are only two visible enemies in the original game and all corpses look the same (naked and male). Character modeling takes a lot of time and effort, so modeling and animating a whole human just so the player sees two legs when he looks down probably moved to the "nice to have" list at some point during development
But I would have prefered it too... maybe in the next game?