I think the Federation has enough ships....it's time for the game to move in a new direction and focus more on an expanded KDF and a playable Romulan faction with new story missions,ships and costume options. Federation play has become dull and tedious, gaining all the unique features the KDF once had with little to nothing given in return to the KDF. If you Feds believe you are superior to the Klingons,why do you want our 'inferior' ships and equipment?
I think you're blurring reality and fiction. No one is claiming superiority. It's a video game. Nothing more, nothing less. Anyone who claims superiority needs a head-check. Starfleet / Federation assets sell better than KDF assets do, so naturally the developers are going to craft items they can sell for the most money.
But I really don't see how adding a carrier for the Feds is making it fair since the Klingons don't have stuff like the Feds do, the KDF would need a catch up first to be fair...both ship and content wise.
It's like a rich kid complaining the poor kid got an IPhone 5 and it would be fair for the rich kid to get the iPhone 6 to be even with him.
Feds STILL don't get BoPs and aside from the Chel have no battle cruisers. The idea that the KDF is somehow hurt by Feds getting another Carrier is silly. Feds've had the Atrox for quite a while.... it's an ordinary Z-Store ship. The big difference is that the Vo'Quv is easy to get. You can get one with a rankup token.
Aside from that, Feds and KDF are pretty even in the carrier department... but not the same.