You bring up the process of learning through operant conditioning and point out that this takes place in life. I could say the same thing about dialogue from a Gestalt theory perspective.
People learn and people communicate with one another as part of living.
However, when we take those routine processes and emphasize them in therapy, something different takes place. I wouldn't tell you to quit talking to people until you'd gotten some Gestalt training under your belt, and I don't really think you were saying that I should quit letting life shape my learning. I do think, however, that you might agree that one shouldn't engage in behavioral therapy without taking a few classes and getting some surpervision. That's what I'm saying about Gestalt. Merely because someone has a doctorate, and is a trained cognitive therapist, or Jungian, or narrative, or works with family systems, does not mean he or she can pick up a few Gestalt techniques and practice Gestalt therapy.