As a wargamer, I feel offended...
Just kidding. But I do want to defend the use of it. Ideally, both outright wargaming and related simulations can play a big role in actually helping the creation of giant-change Rice And Salt-style sweeping "AH as a Genre" books. If used properly with a good enough ruleset and/or author's judgement, it can add a touch of science to what's otherwise a total art and aid with making a "it feels right" kind of tone.
But I do see Serrano's point, and seeing the culture of wargame-centric discussion has made me more sympathetic. Even in the context of a rivet-licious Fuldapocalypse that's utterly unlike this book, there's a giant difference between reading the smooth-flowing Team Yankee and Red Army (both of which have very legitimate technical issues), and seeing a dreary discussion on the same topic that consists of "how many B-52s can dance on the head of a pin" arguments around technical minutiae while only citing early 1980s western sources for anything involving the Soviets.