You're kidding right? You must have watched another game then. Gardner did just fine given his lack of playing time this year and for the magnitude of this game. He more than held his own coming off the bench at the end of the season to play in Michigan's biggest game of the year.
No offense dude, but it seems like you were watching stats instead of the actual game. There were a significant number of Gardner passes that weren't even
close to the intended WR, including an incredibly poorly thrown ball into traffic during the final UM drive that OSU easily picked off to seal the deal. So yes his passing accuracy was awful. Anyway this wasn't a "Taylor is better than Gardner" thread, because any doofus can figure that out on their own