I think the key is that Art the Clown is pretty much a horror icon now, with a very distinctive look that is quite marketable. I agree the violence is more on the sadistic side than some of the other slashers, there's genuine expressed relish in the commission of violent acts - which is effective - and makes it more disturbing. I think HHN will pull it off, it will be really violent like TCM, but maybe they won't split someone in two from an upside-down position, or maybe they will...