You seem to be the one given to hyperbole. You intimated that the only reason that this beautiful-looking set might exist is because Fox want to screw fans for as much money as possible. Perhaps there was simply a desire to create a set that would appeal to the series' many fans, or just to make the double-dipping more palatable?
No-one's forcing you to buy it. Stop exaggerating.
I agree that Fox should make the discs available separately for those who want them, and they inevitably will.