OKW became horribly overpowered, it's not secret for anyone, 6 minute luchs and p4 comes before you can get shreman is not funny now. Volksgrenadiers overperfrom, they stay way too good against riflemans, IS and conscripts, okw also have acess to cheaper sturmpioneers and kubelwagen early what makes you loose map control right from start.
Suggestion: volksgrenaiders damage reduced from 12 to 10, price to 235 mp.
Panzershrek accuracy reduced by 25% from current stats.
T4 gives you acess to such strong tanks but cost only 135 fuel in total. Increase it price to 140 fuel and 15 for truck. (155 fuel in total).
Thank you for reading.
Lets do some myth checking here:
Fuel for first Stuart: 115
Fuel for first Luchs: 120
Verdict: Luchs & Stuart arrive at the same time. If the Luchs arrives to early, then the Stuart does too.
Now lets follow a normal game: Your opponent rushed a Luchs, now he will get battlegroup headquarters to provide heal: 40 fuel.
Your USF opponent does the same, he gets an ambu, Bars/zooks, nades. In total 45 fuel.
Right now both players have spent. 160 fuel.
Now comes Schwer Panzer & Major = 120 fuel.
Both players have spend now 280 fuel.
First sherman out after 390 fuel, first P4 out after 415 fuel. (sure you can go first liteunant or battlegroup headquarters, but I described a meta build here)
As you see it's pretty mirrored. OKW gets the better tank, USF gets the better infantry.
All that changes for allies with the patch that you have to actually get At out in time, WHICH IS NO PROBLEM.
Your suggestions show that you refuse to adapt.
Volks were changed so allies infantry simply doesn't walk over them with no mp bleed.
Panzerschreck accuracy was nerfed several times - it has 57 % chance to hit a stuart on long range. Nerf it further and its more a gamble than a upgrade.
140 fuel for a p4 means that it has to be equalized with the easy8, that means more pen on the gun and more hp on the tank. Since those units would cost the same.
In addition 155 fuel for t4 would delay obers too much.
If you'd analyze the changes you'd be able to realize okw pays now more for teching in general, even if you keep different resource incomes in mind.
You were just walking over OKW players before the patch and this is simply an unusual situation for you.