Long story short, the "pro's" aren't game devs.
Devs came up with stock elephant and doctrinal ISU.
Devs came up with 1240hp, 60 range panther with 7+ speed that turned into 2500hp 60 range panther at vet2.
Devs came up with 251 flame halftruck with firepower of 2 KV-8.
And that is just the opening of the list.
Devs don't lack their brain farts either.
Also, what you expect is impossible.
You can't and won't have a game with gameplay balanced around bads and good players equally.
You should NOT balance a game with bads taken into account unless your creating single player game.