Nope. It is small.
This is a matter to be set between two perfectly capable adults. It isn't a matter to be judged as inappropriate by someone who doesn't know one party and doesn't like the other. IMHO, of course.
Noonan's point, as I understand it, concerns the president's oft demonstrated tendency to overly informalize, even in situations where formality is called for, for example, his disastrous impulse to publicly massage the shoulders of a female head of state he barely knows, or to call a high office holder in his administration, his Secretary of State, by a term of endearment, in public. Noonan is questioning whether the president's understands the uses of formality, its utility in conveying the kind of seriousness often called for when a head of state is on the world stage.