[chc]

Sure, I agree, there are lots of aspects of his public persona that he could stand to work on. It doesn't make calling out typos less petty or more interesting. The difference between "Person makes harmless typo" and "Person I don't like makes harmless typo" is in your emotions, not in the substance of the comment.

[Mz]

That isn't my point. My point is that when someone is upset with you, attention to such details matter. He appears to not even be trying. It looks very likely that he is either a social nitwit who should appoint someone else to handle his PR or guilty of the degree of disrepect of which he is accused.