These crusading politicians (and the unquestioning and uncurious reporter who wrote this article) are following an official narrative which may in itself be sexist, in that they are happily ignoring the abuse that often occurs in the name of feminism on social media. For those who don't believe me, just go on Twitter and espouse a politically incorrect opinion on issues such as abortion, even if written in the most polite unassuming language possible that gives everyone the benefit of the doubt, and you may how unhinged and downright abusive people calling themselves "feminist" can be.
The official narrative being pushed is that women=good and men=bad, or that women are incapable of anti-social behavior, which in itself is sexist because it deprives women of their humanity by not allowing them to do wrong.
To paraphrase George Orwell, "The feminist not only does not disapprove of atrocities committed by her own side, but she has a remarkable capacity for not even hearing about them." (The unadultered quote can be found at: https://www.brainyquote.com/quotes/george_orwell_138306.)