No, I'm suggesting that it is very reasonable that this is the true average. May not be the true median, though, given the 80-20 principle and uneven distribution of skill.
Cool. Sorry if I was confrontational -- the article irritated me on the grounds of sloppy journalism and wide-eyed ingenuousness, and I took it out on you.
no worries, I didn't take your comments to be confrontational at all; and the article irritated me too, which is why I'm here offering better information!