This sounds like a conclusion looking for evidence. What's with the interest in blaming this on feminism?
As for why he's asking the question - because activist intersectional feminism appears to be leading the trend towards these safe spaces, I guess? It was the focus of the article ("rape culture" as a concept is, as far as I can tell, a feminist one), although it segued into the racism/Islamophobia at the end.
It's gotten to the point where the analogue would be to label oneself a 'stalinist libertarian' (because not all stalinists are like that) or other similar nonsense.
It also doesn't help that some of the overloading of "feminism" is from its detractors.