That's actually one of the points made in the video. Activity is only a small portion of the calories you burn and even when you increase your activity, your body regulates your metabolism. If the runner is not on a calorie restricted diet, then his appetite will likely increase significantly.
See? That's a good point you made. You mentioned BMR, activity level, the relationship between calorie deprivation and a corresponding increase in hunger, and how exercise in general isn't the only factor in weight loss. No insults, childish name-calling, misquotations, references to unrelated threads from weeks earlier, obsessive clinging to discredited statements, or personal invective anywhere. Now, had you done that on page 1, we could've had a nice conversation. But, as usual, you prefer the confrontational approach, as it suits your agenda when replying to me. Proof you're only insane when you want to be.