When watching the game I saw it, but wondered if it was just that Peters had managed to time the snap near perfectly. So it looked like he went before because he went right at the snap But when watching the gifs several times it's easy to see that no, he moves before the snap, a lot.
We've seen how teams take away Chandler Jones by huging him since his rookie season. I guess this is a new way of making him ineffective.
This is absolutely not why we lost. But when a team has a habit of moving slightly before the snap they should get flagged for it so they stop doing it. As someone else said. It's not like we would get 10 more flags. After two times or so the team would see that they can't continue doing it, and they would stop.