> it’s bad form to deadname someone even if you are referring to a period when they went by the deadname.

That's the general rule, but some people make exceptions. Sophie Wilson was involved in the production of Micro Men, so presumably signed off on however she was depicted in it. (Then again, Clive Sinclair was also involved, and per https://web.archive.org/web/20250711183307/https://www.indep... objected to his portrayal, so…)