Players aren't as good, schemes are more vanilla, officiating is terrible. Brady is the best ever, but even he is past his peak as evidenced by the fact his team scored only 13 points. The rest of the league is just worse.
The NFL is in decline. Ratings will continue to plummet...as a result so will player/coach salaries. It will have an effect on college football, but hard to tell how or what it means for ND.