I think the general consensus is that application volume is up for most every graduate program in this cycle, but agreed, it doesn't seem that way for Stanford MIP based on the comments on the 2021 Results thread alone.
Heard nothing so far but have been mentally preparing for something closer to 15 Mar since the site says "a decision letter will be sent via email in mid-March," and as others have said I'm sure the application volume is high this year.