Actually I think it was premeditated. You look at the group and tell me what they are looking at. They are not looking at the field or the play on the field. They are not looking at the player and attempting to avoid contact. They are looking at the guy. The last one of the group is even looking behind the other guys to see the guy making the trip. The two before him are looking directly at the trip. This entire picture tells me that there was a discussion about "Not moving" and the guy doing the tripping probably said "I'm going to hit him". There were alot of punts in this game. It's not the first time we ran down that sideline. They are ALL standing with toes at the chalk. These guys planned this.