That's terrible, but a perfect example of where sex actually matters.
I'm not on Twitter but for anyone who is active on any social media, may I suggest promoting 'Girls Night In' while it still exists and before they've changed their name on all the student union websites, etc?
When people who know it as Girls Night In realise it has been charged to mean nothing, it will raise public awareness of the fact that these women's ability to talk about their own experiences and to highlight awareness about the dangers of being a woman around men is being prevented by the fact they can't even say that they are women any more. "Night in" makes it sound like the fact these women are women was merely incidental.
I get why non-binary people feel they're excluded by the word 'girl' but we've gone from being told "non-trans people have privilege" to being told "non-trans people have no specific characteristics which might mean they have differing needs from trans people". It's like women protesting a men's prostate cancer group on the basis of sexism. Men having make privilege doesn't negate the fact they have specific needs and issues too.
It did cross my mind whether using their campaign to highlight the issue of sex/gender is self-serving and might detract from their campaign, but this is the issue of sex/gender and whether they realise it or not, they're victims of silencing. They've been made to detract from their own campaign by the fact sex has been erased already, so I think that highlighting this could only help them.
They clearly don't feel able to stand up on the sex point as they risk losing their degrees in the same way we risk losing our jobs, so I feel a bit of responsibility to help them name their own oppression as this may be one of the first times they've come across this issue of being silenced and ostracised while trying to describe their experience, whereas I and other women with more life experience have been through this misogyny again and again.
I feel the same way about this as I do about prostitution- these young women are victims of the patriarchy as much as everyone else, and it's not their fault they can't see it, because that's precisely how the patriarchy works.