I don't believe the season is over just yet. Lots at stake here. There's the ACC Championship and a Bowl game. Swinney has put himself in a bad spot. Does he go with experienced current QB Uiagalalei for the ACC Championship? As bad as Uiagalalei was, there were at least 3 turnovers by Clemson, 2 on special teams. Plenty of dropped passes. Clemson's defense is pretty good and Uiagalalei can fall for 4-5 yards at a time. So, if Clemson goes with DJ they should keep the ball on the ground. They have two great RB's in Shipley and Mafah and when they need to throw, go to the proven TE's Allen and Briningstool on check downs. That should be enough to take down UNC.
Or, do go with the inexperienced Klubnik, but get experience by putting him in the fire right off the bat by starting him. Klubnik is a lot quicker than Uiagalelei, can run and has a great arm, but it won't be easy being thrown right into The ACC Championship game. At least if you go with Klubnik, you'll be getting him game experience for next season and then the Bowl game. It's not an easy decision NOW, but that's all on Swinney. He should have made the change earlier when Klubnik rescued Clemson in the two games he played in.
Again, there's a lot on the line here. To me the season is far from over, especially for what the future holds.