It seems like you think that treat training is the "cure all" magic training trick. Do you think that there are dogs who are too dangerous and too much of a liability to be rehabbed? I'm just asking this question out of curiosity.
Personally I think that the dogs that are dangerous to be rehabbed are those who are mentally damaged. The rest I think if a person wants to take extra precautions and are willing to take on the life long commitment of a dog that will always require precautions to be taken then I do think the dog can be worked with and have the dangerous behavior lowered enough that the dog can enjoy it's life. I do not think that can be accomplished using any aversive methods.
Please read the operant conditioning sticky, I do not think you really understand how it is that those of us who clicker train, and use positive reinforcement, train our dogs, or maybe it's that we are speaking of the same thing and just using different terms.
Do you know that nearly all of us use punishment on our dogs. *gasp* yes punishment, whether we realize it or choose to acknowledge it or not. What we do not do is use positive punishment on them, we do not give leash corrections, electronic collars, shaker cans, and stuff like that, instead we use negative punishment. An example of negative punishment would be denying attention to a dog that is jumping all over us to decrease the jumping behavior, now once the dog has all four on the floor we will likely click and treat, or we may just give the dog what it was after in the first place and play with it or pet it.
I'm fixing to start loose leash walking training with Zody, and I can guarantee you I will be punishing him. I will not be hollering no, I won't be giving leash pops, instead I will be a tree. His punishment will be that he will not be able to go towards what he wants when he pulls. His reward for stopping pulling will be a few things, maybe I'll let him go and see what he was interested in, maybe I'll click and give him a jackpot reward for coming back to me. My goal is to teach him that pulling is punished by his not getting what he wants, and that not pulling is rewarded by getting him what he wants or something even better.