I'm pretty sure all it takes for a face to be struck is for the face to be turned toward the object. I don't think an object decides to curve around to the side of the head just because the body isn't turned as well.
We don't even know that he didn't turn his entire body at some point. He isn't on camera the entire time. At :56 it appears something caught his attention to the right and then we are blocked by a photo. Do you have any proof that he didn't turn completely to the right?
If so I would love to see it. If not you are only speculating