I don't recall science being much of a factor. MIT does not pick the movies, a small group of students does. If the theory is that MIT approves of whatever happens on it, and has a responsibility to regulate it, activists on campus will surely suffer greatly under this idea. There were and are some very sexist groups that went to these movies. However, note some recently showed up as a counter-protest to a rally against sexual harassment.
Nasty people exist, and can show up in quantity at various places and events on campus.
I have no idea how one would go about testing this. Professors tend not to be at movie shows at MIT, and even less the loud, obnoxious ones. Feminists documented these incidents, lobbied the administration True. But note that if you wish to discount evidence by people who enjoy these moves as self-serving, you must also be skeptical of the claims of people who wish to ban them. I remember that day vividly.