Maybe this will help, Darth Meanie (but also maybe not): Extra Munitions is not "an extra piece of ordnance" any more than Munitions Failsafe is "an extra missile or torpedo."
Both of them are game-expressed ways to avoid discarding the cards that represent capabilities of a ship.
The issue you're having is that you equate Extra Munition as "a second bomb," whereas I bet you don't equate Munitions Failsafe as "a second torpedo." (The quantum nature is even the same: Do I have a second torpedo? I don't know! I won't know until I hit or miss with the one I do have! And if I miss, I might even have a third torpedo!)
If you can wrap your head around Munitions Failsafe, I'm confident you can get past the state-of-existence issues you have with Extra Munitions.


