It's just a 'spoof' by MIT students.
No, MIT students don't do this kind of thing.
Get passed out drunk and have a bridge marked off with your passed-out self? Yes.
Nah, putting a triforce on top of the Great Dome is the sort of thing MIT nerds do. They wouldn't do this kind of "prank".
MIT students aren't really the activist types, at least in comparison with Harvard, Tufts, and other Boston schools. MIT students put "triforce" on top of their buildings and other harmless pranks. Very rarely do I see them involved with the political nonsense.