I apologize if this has already been discussed, I haven't been that plugged in due to the holidays.
My understanding of the rule is that "breaking the plane" is only applicable at the goal line, correct? In the field of play- if a runner crosses the line to gain, and then retreats, the ball is spotted where the runner ends up. Unless of course his forward progress was stopped by an opposing player. On the play in question, the runner reaches out beyond the line to gain and then pulls the ball back. Shouldn't the ball have been spotted at the point where he pulled the ball back to?