But seriously, let's not try and find logic behind a game. It begins with the weird sizes of all the objects (Station interior bigger than exterior, planets being tiny compared to real life, Battleships being really small (compare the window textures) to compared with fighters) and continues with player behavior, battleships rebuild after two hours, which is even with Nanobot-technology a bit weird, and people being able to prevent mighty battleship engines and cloaks with firing a single, unspecific Cruise Disruptor, not even allowing Battleships to do something against troll-snubs.
Seriously, don't put too much thought into the realism behind it. It's just a game and once you try to want to make it more realistic, which will never happen, not with this old game, it's just wasted time. Things are set. Enjoy them as they are.