What's interesting (and a bit baffling) is that the majority of those TRA complaints are solely and based on nothing else at all, because the BBC has acknowledged that there is a difference between women and TW. This alone is transphobia apparently, and not agreeing that women are a group that also contains men is transphobia.
It's good to set out the fundamental incompatibility that means that reasonable discussion is just impossible. If you have a conversation you have to agree to terms of reference and definitions that are only agreed upon by one 'side' then how can you move forward.
And everyone accusing others of transphobia on this basis is missing the v important point that literally no one cares that a TW was taking part, no one mentioned their "existence" in other shows and rounds in this way, because no one was being wholesale lied to about this supposedly landmark event being all women.
True TRA would and should surely feel reassured and celebrate this, that transpeople participating in whatever they want to, using the names and pronouns they choose, dressed as they like, are completely unremarked upon and accepted. I genuinely think and feel this is good. Because I am not transphobic (by my definition).
(I am also v bothered by the disgusting racism and snobbery wheeled out by those complaining on Twitter - comparing black women or 'poor' women to trans women ie all equivalent sub sets of women, is, to me, horrible and offensively inaccurate.)