The only difference between a hoax and a mockup/prototype is intent. I'd say they were giving someone the benefit of the doubt and playing it safe. Hoax: welp,

The only difference between a hoax and a mockup/prototype is intent. I'd say they were giving someone the benefit of the doubt and playing it safe. Hoax: welp, we erred on the side of caution. Prototype: You saw it here first!