In the end nobody really cares. But it's obvious they are paying homage to the 1996 team. They specifically chose to wear the uniform against Kansas St, which makes perfect sense as that was the one New Year's Day bowl win in history. That's one of two teams on the schedule that has ties to that season. BYU wore the home royal jerseys in that game. The K-State game is a home game which would have made it super easy to wear the royal blue home jersey the team wore that year but instead they decided to wear road all whites for a home game, a combo they only wore once that entire year in the game we'd most like to forget.