You're moving the goalpost and saying things that simply aren't true to help your argument. Under no circumstances are UGA or Miami the two great defenses we played this year. Georgia was a great defensive team that stacked the box and dared Wimbush to pass. We attempted to pass a ton, and Wimbush and the WRs were terrible. It was, admittedly and despite the schematic issues I just noted, the worst game the OL had all year, largely because McGlinchy couldn't keep up with their edge rushers (which has always been a weakness of his). Miami was not a great defensive team at all, they're ranked 43rd in rushing defense and 38th overall. But your offensive line can't help it if your QB can't throw a wide open slant down the middle. Wimbush put us in a hole almost immediately which required us to drop any semblance of a balanced offensive attack, which is difficult for any OL. When we did run it, we often ran slow developing plays that have been derided ad nauseam on this board.
On the other hand, we beat plenty of good to great defensive teams this year using man ball. We destroyed Michigan State ranked 7th overall and 2nd in rushing. We wore down LSU's DL in the end game once the offensive coaching staff decided to start running misdirection. And we absolutely creamed NC State's vaunted DL (rushing defense ranked 26th overall). So you acting like ND faces good defense = ND's OL gets exposed is ridiculous. The games we lost were games where either the offensive skill players played terribly, or the offensive gameplan was extremely suspect. We didn't win the Joe Moore Award as a prank.
