The bottom line is that players and coaches have a specific area that they are allowed to stand along the sideline during a game, and that area is clearly marked. It is the officials' job to manage the sideline and make sure players and coaches remain in that area.
That's why Westhoff's attempts to drag the Patriots into the Jets' mess -- which is more about Alosi's trip and less about any type of wall -- is weak. Westhoff is a terrific coach, someone whose schemes are annually lauded by those who play against them, but he does himself no favors here.
Meanwhile, look for the NFL -- as it often does in knee-jerk fashion -- to make this a new "point of emphasis" in the ensuing weeks. Perhaps they'll call it the "Jet Rule."
That would be fitting because the Jets are the only team that should be part of this discussion.