I have to admit that there have been moments in each class so far when I have asked myself the same question, particularly when the instructor asks us how we would feel if we were in our puppy's place. Since I'm not a dog, I really can't say. In general, I favor an approach that is a little more focused on dog psychology.
But, like any good kindergarten the teachers know that their students need lots of time to play, and sitting back to watch a half dozen pups romp and wrestle is never a bad thing.
Life Lesson: Everything in life teaches a lesson, you just have to be willing to learn.