I think you missed the point. The point, to me at least, was that (a) humans have tendencies, and (b) the author of the article wanted to see if he could detect

I think you missed the point. The point, to me at least, was that (a) humans have tendencies, and (b) the author of the article wanted to see if he could detect Handford's tendencies with simple analysis. It was a clever idea for an article and well done, I thought.