In any discipline, you will have what many think of as “the purists”. Purists are those who revere the way things have always been done and view new innovations in the field as upstarts and obviously of poorer quality than the tried and true methods. This is true in digital photography.
For decades the film and chemical processing method has undergone continual refinement to achieve higher and higher levels of sophistication and to find higher levels of quality. Small wonder that when digital photography came along, “the purists” were, to say the least, a bit snobby about the idea of professional photography moving in this direction.