Yes, I quoted a single sentence from the first paragraph (not the OP btw)
Modern slavery takes many forms, but most slaves are forced to work in the shadows. Those who control modern slaves—whether men compelled to work on Thai fishing boats, domestic workers trapped in the homes of their Saudi employers, children ordered to beg in Senegal, bonded workers in India, or sex workers trafficked in the West—usually shun publicity because treating human beings as mere chattel can be criminally prosecuted and cause moral revulsion.
There's the whole paragraph - still no mention of women - I'm not mis-representing anything - the entire first paragraph on an article about women being bought and sold and abused as sex slaves, sets the scene about other types of slavery still present in the world. When doing this, it mentions men, and children in specific forms of slavery, but not women. I think that is odd.
I don't know if it's subconscious, editorial (doesn't like using the word 'Women' too many times in one article?), an attempt to be PC (doesn't feel maids/prostituted women are acceptable terms).
I do think that it's an odd choice.