Ron, in theory I agree with you, but I've seen the opposite. I doubt you or I or David at dr5 could achieve what I saw back in 1972.
I saw stunning B&W Transparencies and B&W reversal prints made from them, by a PhD research student at a lecture. The images whether 35mm slide or print were outstanding quality. There is a major difference between B&W & Color reversal processing because the B&W can be tailored to the film and exposure range, just as with negative film, Colour is very different.
Ian