I don't think that was as obvious as you are making it, the contact came right at the same moment he was going to start forward with his arm. It was at the same time, his hand was empty when it did finally did come forward. The contact can make him fumble the ball forward, doesn't mean his arm was going forward before the contact. That could have gone either way, the call on gates was Ticky tack, so was the holding call a few plays later. None of this was anywhere close to as bad as forward pass turned backwards pass in the eagles game yesterday.