With one second there was no way that MSU could win. A second has to tick off on an onside kick if the kicking team recovers -- and its not possible to advance the ball if the kicking team recovers. The game was over.
They were practicing their 2 pt. conversions, and not very well.
Unless Michigan was dumb enough to pick up the onside kick and try running it, then there is a fumble and then Mich St picks up the fumble and runs it back.
Odds Michigan would pick up an onside kick and try to run with it are slim, yes. But still...why take that off the table.