I can't see them sending blatant lies even if your individual application was still being processed. I'm assuming you both got the email today from the DMSE Dept. Head.
If not, I'll paste it below; Answered all of my questions.
I am writing to you to offer my personal apology and an apology on behalf of the Department of Materials Science and Engineering for a recent email you received in error from the graduate admissions committee in the Materials Science and Engineering (DMSE). I also writing to provide you with some more information.
This year DMSE is using a new software package for its graduate application process. On Tuesday, January 14, around 9 pm, an email was sent to you and all other applicants awaiting a decision on their application to the graduate program, notifying each of you that you had been accepted to DMSE’s graduate program. This email, sent to all applicants awaiting a decision, was sent in error. Staff from the admissions committee discovered the software error almost immediately and within minutes of sending the original email, sent another email to inform you and others of the error. To be clear, a decision on your application has not been made yet. The decision on your application is presently being reviewed and we expect you will learn of the Department’s decision no later than the first week in February.
I now understand the email was sent as a result of a software error. I want to assure you that we are working to better understand what happened so that it does not happen again. I know you may be upset about getting the initial email and I am sorry this happened. I hope that your interest and enthusiasm for MIT and our graduate program in the Department of Materials Science and Engineering will remain strong in spite of this incident.
I am available to talk to you about any questions or concerns you may have.
Yours,
Chris Schuh
Department Head, Materials Science and Engineering, MIT
Guess I'll resort to checking my mailbox every five minutes instead of my email