It is not getting guns. That completely defeats the point behind the concept and I wouldn't have bothered making this.
It is suppossed to be difficult to use, and intended for fluffy/fun play.
One thing I can think of to mitigate this issue is a special rule or upgrade "Veteran Flight Deck Crews"- when attempting to RO roll 3d6 and use the 2 lowest dice to determine the results. This would represent the relative ease a ship fully dedicated to always handling AC would have at refitting/rearming returning craft.
But really, I'm not that is needed. As Sigoroth said, it is about how you use it. With 10 LB, you could easily keep some fighters back to defend it from inbound torpedoes/bombers and still have an effective offensive AC.wave. And as I said, it is suppossed to be for fun, fluff and a challenge.