I agree that this NI team is no slouch, but I think you could post something similar following any close game this season. OSU was/is the preseason #1. OSU is going to get every team's best effort and every team is going to be a little more amped/focused when they play the defending national champs.
There is a huge target on the backs of these Buckeyes and it'll be interesting to see how they deal with it the rest of the way. Will they let the pressure get to them or will they rise above it to become one of the elite teams in CFB history? It's going to be a fun ride to watch it play out.