On this play and so many of their other passing concepts, the ball is basically always going to one receiver, the slot in this instance. The field slot is pretty much open for a TD and King never even looks at him, he’s punishing the underneath defenders for getting sucked in by the play-action and pulling guard all the way.
When you spread receivers extra wide and make defenses worry about the run and coverage at the same time, it becomes pretty simple to just pick a matchup and throw the receiver open in this offense because the defense can’t get help there.