It seems to me that what the messenger says is the message, not the messenger. I didn't comment on the messenger, I commented on the message. John Adams said that "facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence."
It's a wonderful idea to teach our history, Lord knows the schools do precious little of it. However, if one endeavors to teach history, one ought to get his facts right. Otherwise, the effectiveness of the message is diminished.
Point taken!