It's likely that most universities will "quietly drop" unlawful policies. If they don't, then they will be signalling that they are happy to continue to break the law. If they make a big announcement on their intranet, they'll have student piss protests on all their Open Days. So they opt for the slidey, hidey, you-can't-see-me coward's way out. Par for the course, from my experience in HE.