The author seems to have combined "poor people do all the work while the rich benefit from it" and "women don't get to make choices about their own lives and are evaluated on their value as an 'investment'" into one big "men do all the work but women hold all the power" superoppression. Which is the kind of thing you'd come up with if your close female relations are tyrannical, abusive jerks, I guess(I know there's men out there who think that real life is like this), but it's less complex than the intersectionality that exists in reality.
I guess what I'm getting at is that the author is writing about a particularly nuanced topic but wants to focus entirely on the extreme case. No research done, no personal experience, just cartoon villainy by a fantasy matriarchy. It's appealing to people who have a bone to pick with women, not attempting to explore real-life issues in a way that's more relatable to the audience.