Porking fuel stops people from being ably to FLY. This is a FLIGHT simulation. The original concept was to fly and fight.
The fuel multiplier has been raised to 2X, if they allow fuel to be porked to 25%, in some cases there will be no flying at all.
Want to stop people from taking bases, pork troops.
Want to stop them from tearing up your bases, pork ordinance.
Want to stop them from bombing, pork their bomber hangars.
Want to stop them from swarming GV's like cockroaches, pork their GV hangar.
There are still plenty of ways to stop a horde without porking fuel.
Learn new tricks.
Besides, how realistic is it that fuel is stored in the same place on every similar base, obvious and unprotected from attack from the air, and easy to hit?
Nevermind how realistic it is to have three suicidal idiots pork fuel and auger at every base for ten sectors, especially the same three suicidal idiots. Who never fight, they just dive in, pork the fuel, and auger.