Some of these things in this book I've thought about before and some were pretty eye opening to me. Most of it was rage inducing...! A lot of this stuff isn't designed to be outwardly malicious - it could be due to lack of data or could be due to people in power simply not thinking of women when designing/implementing their ideas. Needless to say, that's a major problem when you're talking about half the population.
This book doesn't ignore intersectionality - though it doesn't have a lot of extensive examples. But solving these types of issues wouldn't just help women, but would help everyone - especially those who doesn't fit into the hyper-masculine, averaged weight, averaged height, "masculine" cis-gendered male mold. We need people of all types in every arena where decisions are being made - especially since many of the problems described in this book were solved simply by consulting a woman.