I do not think this is a fair criticism. The author is building a model which accurately captures a certain dynamic. Of course it isn't perfect, but it does get

I do not think this is a fair criticism. The author is building a model which accurately captures a certain dynamic. Of course it isn't perfect, but it does get us to several proposed solutions. Also, I think it is really unhelpful to quickly dismiss his analysis because you don't agree with his methods instead of showing why his proposed solutions fail when you add more realistic constraints to the simulation.