It's an article about sex, pure and simple, and not politics at all. If you think that normal sex is problematic enough without getting into the less common variations, you might well come away thinking the article ignores too much.
The reference to fisting occurs in "A trend we tend to see in film classification and porn classification is that non-normative kinds of sex are seen as more dirty. Things like fisting, strap-ons, some kinky stuff - they're 'extreme.' And they also tend to be kinds of sex that queer people have more. So: queer sex is 'extreme', it’s 'niche'..."
How should we respond when we hear about some kind of sexual activity that we don't find personally relevant? "I hope they don't do it in the streets and frighten the horses" and then turn the page, I'd say.