It seems so. I've just been watching the Culture, Media & Sport Committee. After Tim Davie speaks, David Jordan, Director, Editorial Policy and Standards at the BBC, says that if Justin Webb had said "biological male" or "born male" there wouldn't have been a problem. But people can't change sex and sex is biological, so why should it be necessary to say "born male" or "biological male" when both of these phrases are identical in meaning to "male"?
He also says that asserting that transwomen are male is not the BBC's "style", so they don't seem to be very interested in stating facts.