I'm willing to excuse the performance last night if we never see anything like that ever again. Road games in February can be tough, we all know that.
Remember the 2015 team had to survive in OT against a TERRIBLE (2-16 ACC record) Virginia Tech team in late February. The energy that Duke team played with was very similar to last nights Duke team, NC state is just much much better than the 2015 VT team, hence the blow out.
That was a 1-time thing in 2015, after that game we went right back to dominating teams again. I hope I can say the same for 2020, if VT plays us tight at home on Sat, or if we go down to the wire at Wake, I'll then be very worried.