If you're gonna pretend that even a single one of those cases is from someone having one glass of wine, shot of whiskey, or bottle of beer, then I'm pretty sure you are looking way too literally at the list of "short-term effects." When they say that, they don't mean "you're gonna sound like a drunk Irishmen and stumble all over the floor" after drinking a Pabst. It's moreso talking about drinking enough alcohol to reach a certain BAC level and the side-effects of doing so.
Hell, professional shooters are banned from drinking before their events because one glass of alcohol can actually help them focus more. Obviously they won't have the same benefits if they drink four or five glasses, but you're vastly overestimating the amount of alcohol needed to cause any lasting problems, short or long-term.
