As you can see there are too many factors that prevent heavies from being outright superior.
It's not like you see Tigers or KT straight rolling over the Allies; they have a pretty decent number of ways to combat heavies in my opinion.
So you're basically denying the fact that Axis has a better late game and you can't see any connection between the percentage of axis-won games after the 30- or 40-minutes-mark and the performance of axis and allied armour. Serioulsy?
Honestly I am against having heavies or super heavies in the game in first place. They reward you for playing campy and stalling the game. Where is the point in that? CoH2 already feels much more static than it's predecessor. Heavies are just amplifying that.