It makes no sense to apply to Northeastern ED, and this is a good thing! Unlike other schools, Northeastern does not fill up very much of its entering class with ED admits (about 300 only). Also, its acceptance rate via ED is 27%, which was actually lower than its overall 29% acceptance rate (for the most recent year on file over at CollegeData). This matches what I heard on a college admissions podcast in an interview with two people who had put together a list of schools and ED acceptance rates. They specifically mentioned Northeastern as a school that is not worth applying to ED.
So, yeah, for anyone who views this thread, do not use up the most powerful hand you can play on a school where ED gives no advantage. I’d hate to see anybody make a binding commitment to a school where she/he would have been accepted anyway (probably) during the RD round.