For the top 4, it's about slotting. Basically can't slot any conferences top 4 seeds into the same region as another top 4 seed unless they have more than 4. So doesn't protect a 5 at all and doesn't protect top 4s from 5s. But the multiple matchup thing usually did, but we only played them once so it was possible.But wouldn't that still mean no Providence? We wouldn't be protected as a 5 seed but they would as a 4 seed. Not sure how that works though