Private property equals different rules....
First, let me agree that this guy comes across as a douche. Whether it is his finger slipping into the trigger guard while unholstering and showing his firearm, referring to a magazine as a "clip", or simply failing to carry one in the pipe, it is obvious that his knowledge of firearms is not equal to his passion for firearms.
That said, they were on private property. While the rules state that the firearm may not leave the holster while in public, what this guy does on his own property, or the property of a consenting owner, should not be overly scrutinized in a case like this. If this were taking place in a public park, I would be in total agreement.