The article is written from the aspect of what dieticians will tell you in the now and present. Avoid fat, low salt, limit your proteins to x grams per day, etc, etc. But more and more we are finding out that the so-called food pyramid doesn't actually work. If anything it may be upside down.
Now try looking at it from the aspect of a high fat/protein-low carb diet and you will see how it misses the mark. Granted, we are not all wired alike and that includes our respective digestive and other systems. There will always be people who can't tolerate elevated fat levels, gluten, high levels of sodium, excessive sugars of whatever form, etc.
To say that Spam, for instance, which the last I knew had a planned 7 year shelf life, is bad because of the sodium level overlooks the reality that not everyone chowing down on it is going to be morbidly obese and with a genetic disposition to high blood pressure. We store it by the case and use it on occasion because we like it, and store it precisely because it stores for a very extended period of time.
But to get back to the point we have been finding out for a couple of decades now that a high protein/fat and low carb lifestyle is not only possible but for most people very healthy. Lower weights, lower A1c levels (average blood sugars), lower blood pressure, etc. I did it for a couple of years and experienced all of those benefits, and lost over 60 pounds as well. Life intervened and I got away from it for the most part (I like pizza, so sue me) and put 40 pounds back on and my blood pressure is creeping up as well. Time to eat more meat and cheese and put away the cookies that survived Christmas. (darn grandkids didn't do their jobs and eat them for me)
We store meat in every form we reasonably can, and aside from a half dozen cans of Armour Potted Meat that were tossed just last week for bulging (dated 02/12 as far as when we bought them) we've never had canned meat of any form go back even after 15 years for some of it. Where we live we have access to Keystone canned meats - chicken, beef, ground beef, turkey, pork - and we have a decent stock. Not exactly cases of it but the balloon hasn't gone up yet so there may be time. In addition canned fish (herring and tuna, with a little salmon as well), meat spreads, Spam and similar, hashes, hams and more. Most of it is far from gourmet but we won't have to hunt or butcher for protein and we have plenty of components for casseroles, soups, stews and even regular meals.
In summation, I'd like to say: normal people don't eat Vienna sausages.
RR