IMHO this is only misunderstood by those who are unfamiliar with a recent innovation called the rule book. As Camron plainly pointed out, all the relevant rules, including the definitions, are clear and unambiguous.
What isn't quite so clear is whether this clinician just genuinely doesn't understand what's printed, or if he's hedging simply because he can imagine a situation or two where he personally wouldn't care for the outcome of enforcing the rule.