Penn State is built to defeat Don Brown's defense, but the question was whether the oline could hold up. They were fine, which allowed Penn State to run their offense. Don Brown loves to blitz and play a lot of man to man and contest everything. That allowed Penn State to get favorable matchups downfield with their best receiver and Barkley. As Michigan scrambled to get everyone covered, McSorley took off.
Most teams aren't going to be able to do that. OSU is going to challenge MU in a different way by running lots of mesh and wheel routes, plus they have a stronger overall rushing attack. But don't think they can duplicate those downfield throws.