I can't speak specifically to Northeastern on this, but I have 2 in college in 2 different states and both schools re-wrote the rules and conditions repeatedly throughout the summer. It had a little bit of a bait and switch feel to it. Once students were committed, loans were taken, bills were paid roommates were chosen, etc. the conditions under which the students would have to live were changed. What this means is that at some colleges, students arrived to find themselves signing codes of conduct that contained rules and language that they were not aware of when they decided to live on campus, and were potentially seeing for the first time.
As I said, it felt very bait and switch. I don't think it was, it was probably learning as we go how to live in a pandemic. But since these schools have been given an awful lot of latitude as they learn their way, I would hope to see them behave in kind.