It sure looked like Utah let Williams walk in to preserve the clock and have a chance. The TV guy seemed to think it was just a poor defensive formation with no one lined up in the center of the line, but when he went through the initial hole, the attempts to tackle him seemed half hearted at best.
If so, obviously it was the right call (I wished at the time we had just let the punt returner score), but it doesn’t seem like anything Kyle would ever admit. Or maybe I’m imagining things.