I mean, Heritage had four INTs and forced a fumble. It's not like Glass had missnaps and bobbled exchanges, Heritage played "bend don't break" defense and punished Glass for mistakes. The yardage disparity was about 60 yards, not some giant gap signifying things had really gone wrong. I feel like I could make an equal argument for Heritage performing poorly on offense and ignore Glass' D, it wouldn't be much different than the reverse.
Same QB threw for 450+ last year against Heritage, did he play great or did Heritage's D play poorly? 5 turnovers and a goose egg on the board is the result of the D beating the O that night.
Heritage knows how to beat Glass and it shows. Last year, although a Heritage win (49-42), was the anomaly scoring-wise. In the eight years of Bradley vs Woody Jug Bowls, Glass has posted scores of 0, 3, 7, 7, 14, and 14 points is six of the contests (in fairness, they did win once with only scoring 14). Really seems to suggest that Heritage has Glass figured out which further suggests that D knows how to beat that O on a given night.