The intro is fairly humorous, the "post-apocalyptic" framing is really tongue in cheek, at least to my reading. I think you're taking it far too literally, and

The intro is fairly humorous, the "post-apocalyptic" framing is really tongue in cheek, at least to my reading. I think you're taking it far too literally, and analyzing a joke to death. (E.g. a random other quote from the article: "I will be using C to keep the grim atmosphere of the apocalypse, but you may try this exercise in a different language, of course." This is not a serious "what to do in case of apocalypse" thing.)