"Luck" at the end of games is only really available if you are still in the game. Everyone of those could have been an 8 point loss, and would have been last year.
MSU, Mich and PU are the class of the league this year. I don't care what the records show - the rest of the B1G is very close to each other. Winning those games is a sign of a "gutsy team, good defense and a little luck".