Got this from a Ducks website article on how Mariota suffered a sprained shoulder from Bosa's tackle in the Natty:
"Mariota briefly left the game after being aggressively tackled to the ground by Bosa in the national championship game.
It was unknown to many until recently that Mariota had suffered an injury due to the excessive nature of Bosa’s tackle."
At full speed, it doesn't look like a late hit to me, borderline maybe but it was right to not call it imo. I do have to laugh how they dance around that point in the quote taken from the end of the article above..."aggressively tackled" "excessive nature"? is Football not an aggressive sport now? Maybe if the Ducks Defense "tackled agressively" their team would have been in a better position to not lose badly...