It seems like almost every Hail Mary I see in College and the NFL has some level of PI but it is literally never called. I’ve seen much less egregious contact called on other plays.
Is it just expected and the referees think it’s too difficult to defend without PI?
For example if the guy doesn’t turn to identify the ball and knocks you down while looking at you, pass interference. If that same guy turns and looks at the ball as he runs you over, no flag as he was trying to get the ball. Same end result of wiping out the receiver, but by looking for a ball they get the right to run that path, where if they face the receiver they will get flagged for taking that path over.