Are external reviews for adult films now banned?

I have a website that reviews all kinds of cult films with some genre-themed adult films included. I've never had any problem submitting urls for external reviews until now. My submission for tt0190705 keeps getting rejected with the message: "Reason Does not meet contribution guidelines. We were unable to approve this contribution. Please review our submission guidelines." The submission guidelines are massive and I see nothing in there that is in any way helpful. Anybody know what is going on? Thanks!