this is just about decoupling the word woman from female biology so that men can claim the word,
Exactly. Otherwise you would see the word man being subjected to the same eye watering re-definition. Which, in itself is interesting as people don't seem to have embraced prostate havers, or ejaculators in quite the same way.
And it's also quite the leap to imagine that the vanishingly small number of women who identify as men, most of whom appear to be young teenagers, are managing to change our entire language, right up to the front page of the Lancet. Since when has anyone listened to women?
No, it's the word woman that is apparently up for grabs. And the only way that men can claim to be one, is if it does not, in any way at all, rely on female biology. Hence the need to decouple the word woman from her biology.
That's why 'not all women have a cervix.'
Yet simultaneously those people formally known as women, are now cervix havers.
That way people with penises can be women.