I was really put off by his introduction and ideas about language and lying. And I'm pretty sure[0] there are studies by biolgists, zoologists, anthropologists and others about language as a survival/colaboration tool rather than a tool of deception.
The introduction alone made my opinion for the article as a waste of time, despite whatever else it was going to discuss.
[0] over the years I've skimmed/read a few works on this, but not being my field of study/work I don't really recall any title or author in particular