[rst]

A document saying that any device can get on their network, and that it is deliberate policy to allow that, already is in the public record --- aaronsw's father read from it at the recent media lab memorial.

That said, it's possible that a general document sweep, answering a subpoena, also swept up documents describing, say, internal routing policies, or technical measures protecting access to student records, or something like that, which would be tangentially relevant to the case, and which they would have some legitimate interest in keeping to themselves.