Well of course! Nothing of this is much of a surprise. Atkins also cautions about consuming too many calories. Some people get more of a metabolic advantage and can consume more calories than others. I think it's a YMMV thing.

Re: "excess calories". You miss the big picture. The big picture is that unstable blood sugars cause overeating. It's not the other way around.

"Carbs and fruit are not the enemy". Change those words to "unprocessed, high-fiber carbs and fruit" and I'd say, "no argument there". Many can do this and lose significant amounts of weight. Furthermore, everyone maintains weight on these foods. The enemy is the white, processed carbs. Would anyone argue that as untrue? Except for the USDA, of course.

Be careful about making generalizations, including generalizations about LC. There are lots of LC plans out there, some using higher carbs than others. Also, not everyone is the same. Lots of people with stable blood sugars can lose weight just by eating low fat or restricting calories or simply exercising. But if blood sugars are the problem, LC is the answer.

Wanda