The theoretical advantage of whole grain carbohydrates over refined carbohydrates is that the whole grains are less apt to cause a big dip in serum glucose that

The theoretical advantage of whole grain carbohydrates over refined carbohydrates is that the whole grains are less apt to cause a big dip in serum glucose that follows the huge insulin spike that follows consumption of refined carbs. That dip leads to insulin-induced hunger and possibly further caloric intake. But mostly I agree with you.