I have no problem if the choice is based strictly from on-the-field performance. IIRC, the only MSU coach to have a season like this one in the last thirty years was Nick Saban. I do, though, have a major problem with him being "the king of second chances." It just seems to be that by welcoming convicted, violent criminals back onto his team, he is at best enabling and at worst encouraging a criminal subculture at MSU.
Dantonio's policy regarding criminal behavior seems to run counter to any mandate to help develop his players as young men. Part of that development is holding people responsible for their actions by providing negative consequences for negative actions. Dantonio had a chance to make a statement for his program this season. Sadly, the only statement he made was that, at Michigan State University, if you can play ball, it doesn't matter what you do off the field.
To me, that does not qualify as "coach of the year," unless it is in a penal system league.