I would also like to see more ships, mainly capital class, and none of this balance nonsense. No war has ever been balanced, i don't recall Churchill ringing Hitler and saying "no no fair that you have V2 rockets and we have nothing to match it so don't use them." Want to prove yourself as a true strategest then use a weaker race to win
You might have an inkling of an argument if this were a war simulator. It isn't. It isn't made for realism. If you like unfair fights and that feels more 'realistic' to you, you can load up against 9 Unfair AI and go at it. You also have the option to go against 9 other people if you really wanted. You also have the option to mod a race into oblivion. But most people don't like being walked all over by something imbalanced, and similarly dislike walking all over something using imbalance.
You also used a terrible example. The Axis powers were the 'weaker race' of WWII. They didn't win or even come close because after a certain point, the odds were against them to an enormous degree.
Additionally, war is not a platform to 'test' strategy in real life. It's a physical and political struggle where people die, are seriously injured, and literally lose their sanity. You have imperfect information and must act on that information, and inevitably something will go wrong (or right). It's like playing chess without being able to see the other player's pieces or only knowing in general where some pieces are.
Speaking of which, chess and Go and other games like them are real tests of strategy. Everyone knows what's going on, everyone knows the rules of the game, everyone is evenly matched so the winner is, by definition, the best player - the best strategist - and it has nothing to do with luck, doesn't depend on third-party information etc.