this would be the only one on property where it's not the case. The alcoholic beverages are no more expensive than they are elsewhere. I can't imagine they would change the rules for this one although what that person may be thinking is that they are not included with the
prix fixe cost. THAT is typical across Disney property, but when you have the
DDP, alcoholic beverages are included even with prixe fixe meals... if you're paying cash, only the meal with non alcoholic beverage (and often non specialty beverages too) are included and if you want a cocktail it is extra on the cost of the meal.