There's a difference between analytics and ranking the best resumes. Analytics is there more to forecast probabilities. Purdue's 14 losses can't simply be forgiven. You have to earn wins. Look at
bracketmatrix. It's a composite of close to 100 bracketologists. Purdue is still on the bubble, but they're on the outside looking in. As of right now, they wouldn't make the tournament. They look good on the analytic side of things because they've pummeled the likes of Michigan State, Iowa, and Virginia. They also have a lot of losses to account for.
On the opposite side of the analytics, is a team like Auburn. They're only ranked 38th by KenPom. They're 13-0 in single-digit games, including 5 overtime wins and a buzzer-beater in regulation. Those wins have a lot of merit, and they deserved to be seeded accordingly. As of right now, it looks like a 4 or 5 seed. They won't be downgraded to a 10 seed simply because of the computer models. They earned those wins, and the committee obviously values wins more than efficiency margins.