Interesting approach. I like how it's not entirely ceratopsian. Having no natural enemies means there's little need for that frill. It also isn't cluttered with things that never matched its description, so it actually feels fairly believable - something I think is important for cryptids.
Meh... I never bought that whole "species dimorphism" bullshit. That's a Jack Horner theory, and everyone knows he just goes out of his way to make all the other dinosaurs seem lame so his precious hadrosaurs seem cooler by comparison.