Perhaps when you search with your normal Google account it's skewing to different results. This particular book and the articles discussing it are critiquing modern feminist movements as too conservative, from what you perhaps would call a "radical left" perspective. I find it interesting that this is the exact opposite of "the general criticism at the moment seems to centre on the radical lefts takeover"!
I personally feel my incognito Google search captures the current zeitgeist better than your search, that people are fed up with conservatives and want a "radical, fearless call for revolution" as Google's auto-summary of my search put it. That said, ultimately it's all "bubbles" all the way down, as there's no such thing as a so-called "algorithm" (ranking formula, etc) free from ideology, so ¯\_(ツ)_/¯