I'll have to check out that article, but I'm more of a fan of Sixties TV. Besides DS (which, even though it lasted into 1971, was, to my own mind, very much firmly in the zeitgeist of the Sixties), the shows I've been watching in the past year have included Boris Karloff's Thriller, The Wild Wild West, T.H.E. Cat, The Addams Family, and recently a couple of episodes of 77 Sunset Strip (I think technically those were from '59, as was another series I've been enjoying--Yancy Derringer).
I associate the early Seventies with the rise of Norman Lear via the hugely popular All in the Family (which I couldn't stand), and Good Times and Maude (both of which I found very amusing). I recall endless newspaper and magazine articles of the day applauding the way Lear pushed a new level of frankness onto the tube with the subject matter and writing style of his shows.
There was nothing remotely "groovy" about this new trend, or about the other big hits of the Seventies (even Sonny & Cher's show was more glam than groovy) so it sounds like a case of someone who wasn't around blurring their decades.
G.