I think the suggestion is Deefer didn't really bite the child. If any dog truly bite a child in the face then you're likely to get more than a 'mark'. If a child tried to stuff my Staffy into a drawer all he would do is try to run away. It sounds like it was the child that needed retraining rather than the dog in that scenario.
Exactly.
I doubt very much that the child was lying given that he stated he closed a drawer on the dog's head, but I strongly suspect that he was mistaken in describing what then happened as being bitten.
The rescue is hoping to find a foster/permanent home where there are no you children present in order to ensure that nothing like this can happen again.
Deefer has had at least an hour (usually more) of free running (on a long line) through a local woods since we became aware of his situation, and he is a much happier dog now than when I first met him. He is responding well to the exercise and training he is receiving, and I'm sure he would thrive in the right environment.