This is the biggest accomplishment for this program since Black Friday, 2001, on Folsom Field.
Let that sink in.
As I said before this game was even played....bullsh#t.
Who have we beat that's better?
There is a reason they played so many poor teams so closely, and it's similar to the reason some analytics had this undefeated team dangerously close to being out of the top 25 (that's really hard to do for such a team this late in the season). They're just not a top ten caliber team on either side of the ball (total offense and pass defense, in particular). The political correctness policy may say that scoring margin should not be used in college football, but there is a very good reason it should be: it predicts future success better than any other primary stat in alternate possession sports. Michigan State's margin of victory was pedestrian given its strength of schedule. That's why this line was so low. The record and therefore ranks of these respective teams were a much bigger gap than their metrics.
Arizona 2009, despite 5 losses, has a similar profile to this MSU team in terms of differentials (their production relative to their opponents). The big difference between those teams: turnovers, and turnovers have a high degree of randomness to them.
While those two may have similar profiles, 2010 Missouri has a better one. They beat their opponents by more, and out gained them by considerably more. They finished 6th in scoring defense, MSU came in ranked 37th. Missouri scoring offense 44th, MSU 48th. (Yes, it is silly to consider a team top ten with those scoring numbers.)
2015 MSU only out gains opponents by 0.3 yards per play (and they didn't outgain us today in that category). 2010 Missouri was at 0.7. (For reference, 2015 Alabama is at 1.5 yards per play, but many griped when they were ranked ahead of undefeated teams like MSU.)
Edit: Post Nebraska, MSU out gains opponents by 0.2 yards per play, rank 40th in scoring offense, rank 47th in scoring defense.