Obviously you and I differ on what constitutes a simulation. I don’t think Sabin or Dunnigan would say that Third Reich constitutes a true simulation since to many fudges and shortcuts have been taken to enhance game play at the expense of simulating true strategic warfare.
Maybe you need to reconsider the definition of the word “obtuse” (“difficult to comprehend : not clear or precise in thought or expression”). The Third Reich rules are simple, well organized, and follow the basic outline followed by many games published by Avalon Hill, SPI, Strategy & Tactics, and others. (RE: “Wargame Design” by Berg, Dunnigan, et al). Maybe because I’ve played so many games by those publishers in the past that I find wargames much easier to play when they are organized similar to the way the Third Reich rules are organized. Especially when compared to many modern gaming system rules which are scattered throughout a large rambling rulebook that is 3/4 fluff and 1/4 actual rules (i.e. Warhammer/Warhammer 40k).
I understand that the “obtuseness” of a set of rules is a subjective judgement, and I may be a special case (after all I consider Advanced Squad Leader to be the best set of rules in existence). At least you an I agree in the subjective judgement that Third Reich is a great game.