Are people who hate the dog whisperer just sour because they aren't as successful?

Why do people claim that Cesar Milan is inhumane? Cesar himself clearly justifies his method and can talk about basic canine instinct to back it up. Are other dog trainers just angry because they can not do as good of a job? wish they were as famous as Cesar and thinks he is showing them up? or perhaps they just really don't understand dogs as well as Cesar Milan does. What do you think?