Most of the "reasons" given by the author are rehashes of the same over-stated reason for silver to go up: Weaker dollar economics. The dollar is actually near an all-time low against most measures. To expect Precious Metals to continue to run on the singular basis of weak dollar policy would really misunderstand history.
There are some very valid point though. One not mentioned that I could see, is the fact that reported inflation rates have been intentionally off for almost thirty years now. If the true inflation rate had been published, we would have dealt with more pinics, deeper recessions, and less bull markets. Is it good or bad? It depends how you look at it. The bottom line is, we aren't being told the whole truth.