To be fair, it's a common misconception. The man can't be expected to know everything.
That's my bottom line. People can say sK has a greater responsibility because of blah blah, and make no sense really since he's human after all. He hasn't presented himself an expert on dog breeds or the lights on top of damn old cop cars. He hasn't presented himself an expert on anything. He's just written stories and said, "Baby, can you dig this?".