My overall belief is that anyone can and should prep for short-term problems such as extended power outtages, weather, floods... The type of prep we see here in this video is for only a few with massive resources to draw on.
I agree, and this is one of the major reasons that the show does a disservice to its audience, which will think that emergency preparation is (1) for the "subculture," and (2) way too expensive. In fact, you pretty much have to quit your job and career, and possibly move, to pursue some of the prep depicted in the video.
If that video was the first thing I came across when I started looking for ideas prepping, it would have turned me off and made me feel kind of hopeless. But fortunately I found this website, and Doug Ritter does us all a service with his good sense. Alas, wisdom and knowledge are just not sensational enough.