One of the problems is briefly touched on in the article - human ingenuity finding new ways of waging war. From the Japanese Kamikaze to more modern forms of "h

One of the problems is briefly touched on in the article - human ingenuity finding new ways of waging war. From the Japanese Kamikaze to more modern forms of "hybrid warfare" currently being waged by Russia in Ukraine. Western leaders don't fully appreciate quite what hybrid war is yet, so wargames can help play out ideas about it but if you don't know what your opponent is actually conceptually capable of doing it is very much in the "free game" end of the spectrum and not necessarily of any assistance. Humans are far more complex than mere games can compute. Many WW2 strategy games have to artificially adjust forces involved in the Battle of France in 1940 because rational AI players should not be beaten by the Germans.