The idea that Mao had regressive views on women should not be shocking in the slightest. Modern women's rights are really really recent developments across the world.
One shocking fact I like to bring up is that women weren't even allowed to own their bank accounts till like the 70s/80s. My mom brings that one up when talking about how much things have changed since her childhood.
But it's also not particularly relevant. People don't listen to Mao for his views on women's rights. It's the same way we don't dismiss electricity just because the society back then owned slaves.