The short-film adaptation of this was very well done. The David Lynch-influenced directing style worked well.
Of course, as with most art, opinions and interpretations will vary.
To give a silly analogy, imagine we visit the world of the Smurfs together. We both paint ourselves blue to fit in, but then you tell me: "they're made out of cake frosting". I'm going to give you quite a strange look when you say that, regardless of the fact that I'm painted blue.
The idea that they might not just be wrong, but also in serious denial, is a cute twist.
Have you really never encountered an intelligent lifeform made entirely of meat who insists, often furiously, that an intelligent lifeform made entirely of meat is impossible? Because they're not exactly an endangered species around here.