Your fleet was made for anti-missile work Turin. It was a very hard nut to crack. Fleets like the one that attacked you (without the fighters) are part of what saved me from the Religious folk. Also Organic missiles can fire every other turn.
Just look at my name
I can make a speed 9 CLs for less than 4000 minerals. Two turns for a normal space yard III. They have ECM and 5 organic missiles each. I would like to see any equal cost fleet handle several hundred of these ships. I am sure anyone can design one, but then they would be a pushover for any other fleet you may have to fight.
As Donal Graeme said, "That is one of those sayings that always struck me as false"