Hard to say for sure what anyone is thinking. If you have played football at any level (not calling you out just making a statement) when you drill someone, high,low, targeting, blindside whatever- your reaction is to be fired up. The game is played so fast. These two kids are sprinting head on at each other. You have a split second to react. Was it intentionally dirty- no one can possibly know for sure. That’s why I’m such a huge proponent of the QB protecting themselves. Remember when Pickett faked a slide and ran in for a TD? You have to play until the whistle and make decisions so fast.