He omits the only valid reason any non-speculator would own gold - it holds it's value through times of political turmoil - holds it's value over millenia rather than decades or centuries. A coup d'etat may result in seizure of private companies, rendering your stock worthless, but not touching the value of gold. It would be speculating to put all your assets into gold, but a small amount is like an insurance policy.…
If this is an argument for gold, then it's important to note that most gold "owners" don't actually own gold. They own paper. Or, at best, they own shares in funds that must buy and sell their gold on fixed timetables (debatably erasing a lot of the real gains that would be made by holding actual metal). But they're pretty far removed from the physical good -- and, if the shit truly hit the fan, they'd be just as SOL…
In the last 100 years alone there were at least 2 such "apocalyptic" events: the Russian revolution and the communists' grab of power in China. Granted, there were a couple of lucky stock-owners that didn't see their holdings going to zero (http://en.wikipedia.org/wiki/American_International_Group#Hi...), but generally speaking it would have been much better for a "White" Russian to be carrying gold or jewelry on his way to Paris in the 1920s than to carry worthless Tsarist stocks.