I think I remember hearing something like that and I would also assume your MWU profile page is updated automatically since that's how they generated my interview invitation.
Not to hijack your thread (I too would be interested to know how Midwestern hands out acceptances) but I had two other questions on the same note.
1.) What are you chances of acceptance after your interview (ie how many invitations per seat)?
2.) Is it true that the interview is the only thing that matters from that point on and everyones grades/scores/lors/etc are in disregard? This is what I think one of the professors told us at the interview since it was closed file but then again I may have misinterpreted his meaning
If anyone could answer the OPs questions in addition to my own I'm sure we would both be very grateful.