I'm starting to think you don't know what "satire" means. By definition, an overexaggerated, ironic, and humorous depiction of an idea, issue, or other piece of content, sometimes to the extent that the depiction could be argued is no longer even accurate, is satire. That is precisely what Defenestration is. It is likely supposed to be worse than a "Canadian-made textbook" in its depiction of Soviet Moscow, by design. If the game was 100% historically accurate to the actual Soviet Union, it wouldn't be a fucking satire. It would be a porn game with historical lore dumps. There are many works of satire that large groups of people entirely miss the fact that the work is satire and instead see the work as in advocacy for the satirized idea (see: Warhammer 40k). That doesn't magically make the content not satire anymore, it means people see what they want to see. You can claim the game is bad satire but, by definition, it is still satire.