Well Narn only recently got ceptors.
They didnt have a core rule mechanic available to them. Minbari have Stealth another core rule mechanic to replace a different one.
And ofc races like Drazi and Brakiri should get one. That makes sense, but Vorlons are a different matter alltogether.
They have few ships that boast good firepower. A little boost of 105-110% of firepower, would not put them way out of proportion with a priority lvl, and still give them a little advantage.
But that is useless ramble as balancing the perfect number of AD while keeping kinda within a PL system doesnt work.
The problem actually only comes into existence, when a small number of scouts (Patrol lvl) effect a huge fleet (5 point war). It makes sense, but scouts get better the higher the lvl. Something that few ships do. Every Ship added to the fleet ups the scouts efficiency, up to a point, where any ship gets killed by it. (battle lvl ship left in enemy fleet 3 war lvl ships firing with a weapon reroll).
Also the Scout rule is hampered by the effect, of 1 weapon system per ship. 5 ships use the same data, to effect 5 weapon system. 10 ship achieve the same for 10 weapon batteries. I do not believe that computer power is that limited. ToT values should be that hard for laser beams and energy weapons. How do missles improve from scout data?
ACTA is effects based, so reality doesnt play any big part here, but the rules dont really add up. Well when you look a littble bit too close.
*rambling grrr*