If there were a 1:1 ratio of women and men in the chess world I would agree that all tournaments should be integrated. But a lot of women feel alienated at these mixed events, so it's positive to have occasional all women's events.
I love chess, but it's the height of decadence.
Playing chess is more athletic than artistic. Champions are more concerned with victory than beauty: it's war with occasionally graceful kicks.
Tournament chess is not relaxing. It's stressful, even if you win.
Most chess books only sell a few thousand copies, and a book titled something like "Women in Chess" would sell even fewer. The idea with this title was to spread the book outside the competitive chess world. I'm interested in attracting readers who love chess but play only casually, and feminists interested in male-dominated fields.
