Former Head of NFL Officials: League Changed End Zone Celebration Rules to ‘Reach the Millennial’

Referees discuss a call in the second quarter of a football game -- the NFL will test a new rule in 2016 under which players will be ejected from games if they receive two unsportsmanlike conduct penalties
According to Dean Blandino, currently of Fox and formerly the head of NFL officiating, the league has sought to repair its image among young people for quite some time.