My first draft was actually more harsh, mostly because I do not consider this essay well written in several aspects. I did not insult the author; I just did not sugarcoat my criticism, as US American culture of insincere friendliness may demand.
You still have not pointed out my alleged insult (as in personal attack). The only insult I see here is your passive-aggressive one: "Humanity never ceases to amaze me, on both ends of the spectrum."
As for your questioning why I did not reference external sources, the invalidity of this popular myth is far from arcane knowledge, especially on the Internet where it is just one web search away, and I do not reward lazy ignorance.