[Iftheshoefits]

First, which of the "myths" are "factually accurate" and in what sense?

Second, I don't find his use of "myth" objectionable, in much the same way I (as a scientist) don't find objectionable the use of "theory" to mean "guess" in non-scientific speech (attempting to impose "guess" as a meaning when discussing scientific theories is anathema). This use of "myth" here is fairly common, at least colloquially in America, as a rhetorical flourish in place of "misconception."