Tom, I agree with you 100%. Actually I've had the feeling about DCG since I first saw the show several years ago. It seems like the tendency has always been either over restoration, or deviation from traditional restoration practices which obviously damage the cars, if originality is the priority. I don't critisize anyone who chooses to deviate from stock with their own car, but "how to" shows that showcase unconventional techniques as acceptable alternative to original restoration have always bugged me.
The first car that I paid attention to along these lines was the straight axle Corvette done a year or so ago. The chassis was removed, but for whatever reason, they did some clean and spray process with no suspension disassembly or removal which seemed band aidish at best. There were also some pre paint body prep steps showcased which seemed to deviate from generally accepted Corvette prep when originality is the goal, although I don't recall the specifics.
It's really sad when original Survivor quality cars are restored unnecessarily.