You begin your criticism of BdM (as he's known in the discipline) as stating you do not know much about political science. You should have stopped there. Instead you continue and ask the question: "has this man no students"?

This indicates that you probably did not read the article closely. 1) The article said that grad students in the discipline (of which I am one) are taking courses in these types of formal models. 2) He is a professor at a prestigious university. 3) His articles have appeared in the top peer reviewed journals of the discipline.

What this implies is that his methods are being tested and replicated. 1)Game theoretical methods are taught to graduate students in poli sci departments across the country. 2) As a professor he has graduate students who are replicating his models. 3) Since he has published a large number of articles in peer reviewed journals his methodology has been double checked by other political scientists. We are a weird bunch, I have friends who run data for fun.

What you fail to keep in mind during your criticism is the medium of the article. This is a e-magazine with popular appeal...not specifically targeted to academics or professionals in an individual field. Therefore the problems you are finding are not necessarily with the individual...but the scope of the source.