It's not about continuity, and if you think that's the point, then you didn't read the piece very closely. (And clearly you didn't follow the link and read the whole piece, wherein Chris Sims mentions that he never considered himself much of a Scooby-Doo fan until Mystery Incorporated came along. And for that matter, neither did I, so I'm sure as hell not approaching this from a "rigid fanboy" perspective.) It's about the underlying message and philosophy of the show, and though I never previously would've thought Scooby-Doo had a message and philosophy, I think Sims made his case very well.