Because then they'd have to admit that College Football isn't some wholesome, amateur sport, with charitable souls participating simply for the love of the game.
...Perhaps this explains it? Apparently, OSU changed all their signs prior to last night's game.
https://www.google.com/amp/s/www.si.com/.amp/college/2020/11/06/clemson-signal-stealing-dabo-swinney-daily-cover