There's more than one way to skin a cat...or train a dog. Bad trainers (using many different 'styles') abound.
One of the articles discounted the "pack theory". Pure BS. the first thing stray dogs do is pack up. Anyone with more than one dog (or chicken) sees the pecking order quite plainly. I don't profess he is a perfect trainer but there is a lot of right in what Cesar does and advocates.