Eh, I disagree. Most of those changes are commander specific and rolling them back would be a terrible idea. Ostheer's weaknesses have less to do with allied commander choice and more due to them being somewhat left behind in terms of their tech / unit structure which hasn't changed all that much since release. They are barely balanced against soviets right now and have a tough time with brits / USF due to your core infantry simply being inferior at nearly all stages of the game, especially vs. brits, and especially if they decide to do advance emplacements and you picked a commander without a LefH to counter it.
The only things I think really need to change are a nerf to assault engineers, and a nerf to pathfinders so they don't come out immediately, make them like IR Pathfinders that have a 50 second cooldown.
I have never seen Assault Engineers used in 2v2 since the last nerf they got. I also very very rarely see UKF emplacements so it seems weird that you highlight how Ostheer cant counter emplacements without Lefh. But maybe that´s because you mostly play 3v3 which has a different meta to 2v2.
USF got a lot of non-doctrinal changes like the tech revamp and M20 buff. Maybe now that USF got a decent tech structure it would be time to tone down some of their OP units like the Pak Howie, 50 cal, Jackson, Scott and WC51.