IMHO, you are right and wrong at the same time.
Photography, as it exists now, is silver gelatin. The Pt/Pd and other methods are trivial compared to silver gelatin and it is vanishing. It is possible to mix and stir and get a good Cyanotype or Pt/Pd, but to get a good Ag/gelatin is a vanishing art. None of the above address this. You see, your answer falls far short of understanding silver gelatin itself.