Most people simply don't need this kind of storage anymore.
But this is exactly the sort of storage the linked article is talking about. So your point is that I attacked a "strawman" because I didn't accept the linked article for being something entirely different from what it is?
but the large majority of companies aren't
The majority of mid to large sized companies run entirely on SANs. I'm not sure where you get your information from, but how shoestring upstarts operate has nothing to do with much of the "real world".
This article is about a home-brew SAN, with home-brew SAN qualities and deficiencies.