Do you really believe that nonsense?
I still say that Curtis does what he wants. If you heard him talk at the William Paley Featival, you could see he was the person in charge. The vampire thing just worked into his favor. Popular demand would have put some of the original cast in the 90's Series. Did you see it done???
Curtis had an enormous amount of control over the show, but he still made concessions to audience or network demands.
Roger was initially slated to be killed off (I refer here to the pre-Barnabas stuff), but proved so popular that they kept him on. The same thing happened with Julia and Barnabas. That's conceding to audience demand.
You'll note that in both HODS and the 1990s series, Barnabas is a much colder, ruthless characterization. And according to several interviews I've read with writers and directors, this was Curtis' preference. The popularity of the character took off, however, and he went with it.
By the time of the 1990s series, the original fan base had eroded in numbers. Yes, there are a lot of us, but not enough to keep the ratings as high as they needed to be. He was obviously looking for a larger fan base. The whole approach to the new show was markedly different from the old one.
Going with what the majority of your viewers want during a show's progression is a little different from reaching down to the diehards who used to watch your program.
I'm sure the man was/is very much in charge of a lot of things, but he doesn't exist in a vacuum (sp?).
Luciaphil