That would be quite astonishing. Not too mention definitively suicidal from a balancing point of view. There's a reason why all the wargames were balanced around 1v1/2v2: above this amount of players, there's much more "noise", randomness and snowball effects hiding what is actually not working correctly.
So I'd say I'll believe it when I see it.
Well I think that simply from the fact that D-Day wasn't fought with only 2 divisions is a good reason for it to be balanced around larger battles. There's a reason you don't only field armored divisions, you need infantry to back them up. You shouldn't have to balance the 3AD to play nice with the 91LL, the same way you shouldn't have to nerf the 12SS so the 2ID tanks can pop them.
EDIT: Because I know we take stuff literally here, those are just examples, not a freaking manifesto.