As far as I’m aware, Gaijin is adjusting based on consumer trends. Why do you think they’ve been heavily pushing out modern vehicles despite lack of technical accuracy? It is because there is heavy demand, and money is flowing there. To say they aren’t delivering what “modern” players are asking for sounds incredibly inaccurate, considering we on the forums are a minority of the player base.
You and others were constantly told by other forumers with valid reasons why a historical matchmaker does not fit the state of the game for normal public matches excluding events. You disagreed and give your own definition of what War Thunder should be per your expectations and defended your position, only for an employee to explain what others have been telling you already. Unless the employee is a buffoon too, you would do well to reevaluate what you think you understand about the game. I can assure you are mixing some of your wants as game needs.
Because, as @SinisterIsRandom is showing as examples, it would be heavily unbalanced. You were even told that by the employee, and now you’re dismissing them as stupid.