Sloppy stuff from Kellogg. I can understand that with the new admissions director they are experimenting, but they also know (and ridicule, like other adcoms) the anxiety of applicants to business schools. They also know a sizeable chunk of applicants are from India and that when this email would go out, the most populous part of the world would be up and checking frantically. If your system isn't ready to go, don't let it go.
In the mean time, and not to rub salt on Kellogg's wounds

, maybe this is interesting reading. Example of more sloppiness from Kellogg's side:
https://unclearadmit.tumblr.com/post/377 ... licy-sucks