Does anybody else think this study isn't fair?

Not really. i think the research just proves that junk food (high in fat and cabohydrates) make you hungrier rather than sated. Since protein is available in many plant based foods as well, i don't see how the research is designed to promote meat eating. It is more of an indicetment of a hamburger and fries meal at the local burger joint, a typical high fat, high carbohydrate (and with softdrink, high sugar), with medium protein food commonly consumed without a second thought.