As one may recall, the MIT Provost single handedly closed MIT to its alumni. The COVID virus was one of many reasons but it has become the raison d'etre for all proto-Marxist attacks on freedom and individuality. Not that I am in any way opposed to Public Health, in fact I believe it is essential, but regrettably it has become a political tool.
Thus I guess the backlash to closing MIT to only the select few to adhere to its new policies got the Provost to slightly back off. But the back off allows entry to lobbies and still has significant delimitation. Thus if an alum desires to contribute to a research effort they must be escorted by an appropriate Commissar to that area.
I recall Moscow in the 70S! I recall the Kluge Lady, the KGB plant that kept your key to your Intourist Hotel room, and controlled your entry and departure. I guess MIT had its own version of a Kluge Lady controlling the entry to only politically approved Party Members!