millitntanimist, your example is good. Thank you.
But from what I mainly deal with and from what I see (shelter dogs mostly) is that the dogs may be loved to pieces, but the dog has not learnt to respect their handlers or other dogs. Respect is the biggest part of training, the dog must feel comfortable to have enough of this to trust the handler. Respect and Trust is the foundation to successfully train a dog and also overcome unwanted behaviour.
Alpha rolling a dog is NOT teaching the dog either of these very important ingredients. I personally think that the dog is belittled and therefore loses interest and respect for their owners.