Also, I think the Fake OOB play by Mahomes in the video posted by CCR was just a dense play by the defense. Mahomes barely indicated he was going to go out of bounds, and the defense all pulled up hard like they were afraid to touch him.
They
are afraid to touch him. Like
@g00n said a while back, there's the rule in the book that you're very focused on, and then there's how it gets called on the field by the refs who are getting pressured from nine different directions to protect the star player.
It's not every ref and it's not all the time, but you know what we're talking about here...
"That's 15 yards for breathing on Patrick Mahomes, another 15 for looking at him funny, plus half the distance to the goal for grazing against his jersey while contorting yourself impossibly in midair to avoid a collision, resulting in a broken collarbone of your own. How dare you!"
Then there's the other end of the play...
"15 yards for pass interference because you looked at the ball as it touched the receiver's hands, another 15 for making him feel anxious by following him all over the field every time the ball is snapped, and half the distance to the goal because we referees like it when games are decided by the calls we make. We like to feel important."
DISCLAIMER: The above post contains dangerous amounts of hyperbole. Its purpose is to illustrate the occasional flimsy roughing and interference calls that must make it frustrating and infuriating to play defense sometimes. It is NOT directed at the offensive players, who have every logical right to take advantage of problematic rules and the even more problematic ways they're sometimes enforced. So don't get your panties in a twist. Neener neener.