I checked the past three seasons and they have used the power ratings EVERY YEAR. Last year UNC was the last at large in because the formula said so. UNC then proceeded to lose to Albany in the first round. If they had gone against the power ratings this year they would have had some explaining to do. By sticking to the formula they maintain the appearance of fairness whether or not they picked the best at-large teams or not. OSU was playing as well as anyone down the stretch (including a win vs RU and a win vs Maryland) but having them leapfrog several teams in the power ranking based on being “hot” isn’t something the committee is willing to do.