I agree with some of this, disagree with some of it. For one thing, she ignores insulin physiology. For another, she ignores menopause. She is right that losing weight is difficult given all of the abundant and cheap carbs available to everybody, and she is surely correct that people without weight issues are those who hear an internal signal that says "That's enough."
In the end, though, carb "addiction" is the main challenge for anyone who is overweight.