Congratulations, you found the exception to the rule. The answer to the question is most definitely a shitty RPI.

But they played a complete shit OOC schedule, and got swept in the only decent OOC series they did play. MSU has played a tougher schedule OOC this year.

9 times out of 10, that team will host. And had they won one more SEC game, they probably would have. If we get to 18 SEC wins we're on the hosting bubble, 19 we're a lock.