"Clear professional foul"?
If you can't tell the difference between a cynical play to wipe out a support player, when you have any number of seconds to make the tackle and choose to do it just before a pass (a clear professional foul and what the rule is made for), and a player in a defensive line with a player on top of him about to get the ball and mistiming it so closely that the slow motion is needed to tell that it is an early tackle, no one can help you.
There would be a dozen sin bins per match on that standard if you slowed up and replayed every tackle.
And I'm going for the Raiders and thought the trainer being able to interfere without penalty was also rubbish.