This news has caused some people to ask why "women's chess" even exists -- women can compete in the open tournament. The women's competitions were a recognition of just how far behind chess is when it comes to cultivating and welcoming female players.
Not that shocking they are even more far behind when it comes to even knowing what that would mean. (eg not excluding trans women.)
But all this misses the bigger point. They don't want any trans people at all in their games.