Thanks for the link. Here is a pertinent quote from the linked page.
Riveron says when the choice of obvious, the officials dont even consult with the coaches. If a foul on the offense will wipe out a first down run, or if there is defensive pass interference on an incomplete pass, the referee doesnt even consult with the coach, since it is obvious the coach will want the penalty. The referee will just instruct the umpire to walk off the penalty and hell make the announcement, he explained.
The officials didn't originally make a big issue of the offsides because it would obviously be declined because because the ref thought there was illegal touching of the ball. Once they realized there wasn't illegal touching, they had to deal with the offsides that was called. If the ref saw any part of the player past the line when the kick, it's offsides.
Time to accept it and move on.