I would say that this has a good chance of being correct. It's almost too petty-sounding for JP.
I don't know how he sounds but I can't imagine a guy gets to that position without some semblance of diplomacy. A high school AD knows better than that.
Either it was a momentary lack of weakness or he has some assistants write some of his replys for him. That's not a great excuse because it's still his name on the bottom of the letter.