That's a point of view... You could justify your view if you like.
From what I see (I don't claim to have fully analysed this article) he was trying to constructively convey his point of view, which as far as I can see did not contain anything derogatory towards any sex. Furthermore he was calling for sensibility and even-handedness, which I think is desperately needed when discussing that subject.
Just because somebody isn't mindlessly waving flags adorned with the latest feminist (often sexist) catchphrases doesn't mean they're a sexist jerk. Perhaps they simply have an egalitarian agenda rather than a patriarchal or feminazi one?