Except, that the term 'people with a cervix' wasn't used when advising about cancer in the not too distant past. But if i'm not mistaken, their were women in the not too distant past that had also had hysterectomies. Why are they using that phrase all of a sudden. If it's for the benefit of women post hysterectomy then it's more likely that it would upset them. Because it's reminding them of the fact that they no longer have a uterus/cervix etc. It seems to be extremely insensitive in that context.
How little you know women. A woman who has had a total hysterectomy is all too aware of what has been done to her, I can assure you. Perhaps you think that women are dainty flowers who have to have difficult subjects tiptoed around so they won't blush and be embarrassed, but actually, we can be pretty darned pragmatic when it comes to our girlyworks.
You might be surprised what your wife, girlfriend, or significant other talks about when you're not around, and in addition to her own intimate workings, I suggest it's also a pretty safe bet that if she has sisters, then by now they know ALL there is to know about you. Ditto her best friend.
As for any reason for it being used "all of a sudden"..... I've been aware of this particular phrase for years. I've seen it used in various items of women's information literature in Britain which I suggest you're probably not aware of, or if you are, why..? Do you make a habit of going out of your way to scrutinise women's intimate medical advice literature...?
It seems to me you have picked up on this petty little issue of wording and are attempting to big it up into something it isn't in order to grind an axe against what you perceive to be political correctness... probably of the "gone mad" variety.
Ridiculously though, all you're achieving in reality is insulting the intelligence of women.
Husbands, partners, etc do well to care and give support to wives, partners, etc who have to undergo radical surgery. They can be involved in an important and genuinely caring role. That is when menfolk show themselves at their best.
My tip: Stick to doing what you're good at.