I think it is the point. If you haven't seen the film and know nothing of it at all - the twins have become a big internet meme in recent years so it's not like people have to have seen the film to know stuff from it (Nicolson with an axe screaming "Here's Johnny!" - then all you're seeing is two middle aged men dressed like they have that toddler fetish. You're also deciding not to look it up to see how well done it is. However, most people know the twins and so it becomes a really good costume that is both funny and a bit disturbing but not in a pervert way.