I got the same email. Hey, at least it's not an outright rejection lol. We still have a chance depending on how many people do not accept their offers.
For those of you waiting for a response from Munk, I emailed them and their response was the following:
"Thank you for you email.
The MPP Admissions team is aiming to make offers to successful applicants by mid-March.
Sincerely,
-MPP Admissions."