It is extreme; there's no position that can be held that's further extreme in this particular line of thinking. It's in academia's and scholarship's best interest to cast an umbrella as wide as possible--to give room for both the radical and the traditional to have a voice, no matter how extreme or blase. That said, there's a reason this kind of writing appears in a blog with the word "radical" in the title, and not in say The Chronicle of Higher Education. Academia has it's own systemic (and serious) problems, but this blog post isn't symptomatic of it (or at least not in the way you're implying). While this kind of writing can result in a PhD, it's not because this vein of thought is reminiscent of current feminist thinking; it's because academia doesn't really care what you write about or what positions you take as long as you go through its bureaucracy and utilize its vernacular. In general, like in all profession, the more you actually posit these kind of rock-the-boat positions, the less hireable you are--so while some professors might even pen an article like this, it's rarely if ever going to make its way into the classroom much less will it contribute to the real world problems women face. In this sense, academic extremism is a bit of a farce.