Yes, they did laugh at you when you asked my question at the DO. Well, maybe this means that they will not only have a first class but BOB as well LOL.
I think First Class ticket costs would have to make up the price of the missing seats, for instance if they lost 6 seats the price would be the average for those 6 seats divided by the number of EMBR seats added to the current cost of a regular seat and maybe some additional profit.