I'm sorry but you miscalculated everything hoorribly. Ostheer, for example, has to tech so much more. From what I see You decided that all buildings ost has to erect are optional, which means that you can only play with engineers and mg42, panzergrens and call in infantry. It is impossible to do it and win against even much less skilled opponents. Partialy you also proved that there are sidetechs for ostheer with your post. The only difference is that with ostheer you sidetech to get units while with usf, for example, you sidetech to get upgrades. Maybe you should play other facions more?
Can you cite more specifically. For the end tech rush I only counted the buildings you need. I agree that leaves OH with only pios, Mgs and panzergrens but I have encountered such rushes to ostwind so it doable.
The other calculation I made to T2 I again disregarded the T2 building for OH since it is now made even more optional as panzergrens can be built from headquarters. An argument can be made that OH T2 tech counts only with the building present but then it would only seem fair to add the cost of unlocking AEC for UKF as well. So the fact that its cheaper for axis doesn't change - we just add more variables and would make the price gap in axis favor to the OKW T2 even greater.