We rarely see a human. This is big-budget documentary and it looks like it was made on a shoestring. We're exaggerating his style. However, Mackenzie says Moc Docs encompasses much more than in jokes for filmmakers. People who don't watch doc at all won't get much out of it.
Documentaries are a wonderful format for comedy.
Usually when you have a comedy sketch it's funnier when it seems more real. Mockumentary in some cases merges seamlessly with some docusoaps. I think that's another thing that attracted people to Moc Docs - that nonfiction can be more absurd than fiction. It may not have been documentary in the classical form. Now documentary can cover wildlife, science programs, the origins of food, rather than be straight cinema verite or an auteur point of view.