Ok, one thing against the 'data analysis' in OP: if Santa Clara is allegedly male-dominated then the better comparison is number of complaints per million women in the local labour force. The other obvious one is that complaints per capital possibly falls with income. Without correction for that, this offhand denial after a casual data browsing is too easy. My personal ethics suggest that any sector where business is done in sex clubs and hot tubs is shady, but who am I? It's like when Heineken had stocked fridges with beer for meetings. It's not directly female-unfriendly but the social dynamics of meetings change after a few beers. They stopped that a decade ago.
So this article criticizes a lack of data then only uses a single data source (on complaints) that loops in all housing and employment data into one without separation of type (say, by sexual harassment). That doesn't really show anything beyond the bias of the author. Not to mention the inherent problem with formal complaints vs actual number of incidents that is not discussed at all. As mentioned by others, no accounting for income or any other factors was done either. I wouldn't say any information of value lies in the "analysis" here. Not to say the book is validated, simply that this is clearly hit piece that's trying to disguise itself as a review from any point of neutrality.
There are an awful lot of Harvard educated journalists complaining about male privileged nowadays. Chang probably makes more money than most of the techies she attacks in her book. She has her own national television show and now book that's being promoted in the mainstream media. Business Insider called her one of the top 100 influential people in tech. Pretty good for someone who can't code! It doesn't look like this so called discrimination has had any impact on her career.
Glad to see more work from Quillette, strongly believe they're one of the only strong less-bias sources of objective journalism in our world today.