She explains her choice in an essay on the site:

I knew at once that I wanted to showcase the work of women writers. Not because they’re women, but because they are writers whose work thrills and surprises me. And because, simply on account of their gender, they are too often overlooked by the silly popularity contests that are juries and boards and lists. This is not a question of the writers’ quality but of our society’s habits, and of a habitual—and primarily lazy—cultural expectation that male writers are somehow more serious, more literary, or more interesting. When awarding laurels of various kinds, it is all too often a matter of who one thinks of first: if one thought twice, things might look a little different.

Who are the seven writers she selected?  Chimamanda Adichie, Sefi Atta, Holly Goddard Jones, Elliott Holt, Porochista Khakpour, Lorraine Adams and Hasanthika Sirisena. Obviously, they bring it.

So do the commenters!  Responses range from, “no fair, men are marginalized/judged too” and “maybe  men don’t write interesting women, but women don’t writing interesting men” to “duh” and “hmm, totally, duh.”

I’m always excited to see people discussing gender an literature, even when the outcome annoys me.