I think so, but I also think our recent defensive successes stem from playing some mediocre to downright awful offenses, and weather.
NC State was in the rain, so like others have stated, can't necessarily count that.
Stanford was without Christian McCaffrey and currently ranks DEAD LAST in total offense. They scored all of 5 points against Colorado, 6 against Washington and 16 against Wazzu.
Miami ranks 70th, but most of that stems from their 3 cupcake games to open the season. Other than that, they've scored 21 on Georgia Tech (35 actually, but 2 scores were fumble returns), 19 on FSU, 13 on UNC and 16 on Virginia Tech.
Still, better than giving up more points to Duke in one half than Wake and Northwestern surrendered in both of their matchups combined.