Don't think you can understate the importance of this play. A 7-7 or at least 7-3 score turned into 10-0 and a two-possession lead for most of the game. Wrote a bit more about it:
InsideNDSports - How Bo Bauer’s INT provided a critical early shift in Notre Dame-USC
His red-zone pick of a deflected pass took point away from the Trojans and set up the Irish with first-and-goal.
notredame.rivals.com