That is exactly opposite of how they misuse the Spitfire line in the AvA. With Spitfires they either use the wrong one for "balance" reasons (make sure the Luftwaffe is dominant?) or through willful ignorance of Spitfire history (because it is a dweeby, MA plane that nobody serious could possibly like?)
Honestly dude. this crap get's really old. There is no doubt that you have more specific knowledge of WWII equipment than most, including us, and yes, sometimes we aren't real anal in planeset accuracy.
One reason why people prefer MA is because they never have to deal with a disadvantage that may be historically accurate. It's hard enought to get people to fly limited planes without putting them up against nothing but Spit 16's. If we could enable finite numbers of planes etc it would be better because when we include unlimited late model spits, that is about the only thing that will be flown on that side.
I realize you find it more satisfying to acscribe selfish and nefarious motives to us, but in reality, whether we get it right or wrong, our only motive is to attempt to make it fun for both sides.