I do consider the punt return for a TD as a pretty lucky play.
But the scoop and score for a TD and the 2 INTs were the result of great defensive play and getting pressure on the QB.
Plus, holding KSU to just FGs and forcing them to turn the ball over on downs doesn't just happen. The defense played a big part in that. And truth be told, their 3rd FG should not have happened because their QB was OB on 4th down before scoring.
So, yes, there is probably a lot that KSU could do better, but BYU did a lot to create the results in this game.