Well, there are conjoined twins in real life and we can tell a story about them so long as they're not the brunt of the jokes. In this, they're the heroes of this story; we love these guys.
A lot of the television industry is so cookie-cutter. In general, there are so many shows that are easy and bland to watch. You can tune in at any time and know exactly where you are in the story arc because it's pretty much the same every week.
I don't think it's the job of filmmakers to give anybody answers. I do think, though, that a good film makes you ask questions of yourself as you leave the theatre.