As far as has been publicly stated, nobody was advocating misgendering, there was only a question over details of the policy. See footnote 1 to the OP here
"as a professional writer I, by training, write in a gender-neutral way specifically to avoid gender landmines, and sought clarification that this would continue to be ok"
That isn’t true. Monica didn’t advocate misgendering but there was at least one other moderator (since resigned) who did. I’m not sure if that’s what iron1003 was referring to since it wasn’t as well publicised as Monica being kicked out (not resigned) but it triggered some of the subsequent events.
You really should make an attempt to understand the situation before making such accusations.