I notice that there was no comment from a TRA in the BBC report, in the past the last word would be given to them.
It's worth noting that transwomen prisoners are not going to be just 'thrown to the wolves' in men's prisons - Lady Ross's judgment made it clear that the PC of gender reassignment applies to trans-IDing men in men's prisons, and that there are already arrangements in place to protect those PC rights in men's prisons:
[124] There are, of course, means of protecting trans prisoners’ rights which do not involve accommodation in a prison for the opposite biological sex. I have referred already, at paragraphs [7] and [112], to the various forms of special provision set out in the Prisons Guidance. In this context, it can be understood that there are arrangements made allowing a trans prisoner to “live in their affirmed gender” and that, with those measures in place, the respondents respect that trans prisoner’s Article 8 right to a private life.
I'm not making a value judgement on that, I'm just heading off any suggestion that transwomen will be placed in danger in vulnerable situations when they are returned to men's prisons. They won't be.