Would this include the upgrade to access vehicles and support weapons like the pak howi? I assume you mean both Lt. and Captain, not major. I personally think it could be viable but some on the balance patch team and relic probably wouldn't want USF to change so radically.
I think There is a direct conflict between keeping some of the cool mechanics like
"free officer, Free Bar" and creating balanced and diverse gameplay.
Similar conflict occurred when OKW got full resources at the expense of neutering vet 5 and increased manpower costs for tech.
First and foremost it is important that the game is fun and the factions are different. But as we get to the later phase of the game lifecycle, I think most experienced players would appreciate the latter balanced and diverse gameplay as we already think the game is cool and exciting
Edit: I don't necessarily think cool and balanced/diverse are mutually exclusive, but i think the relic balance team never really got far enough into meta problems *see soviets spamming units from 1 tier from day 1 to day now* or fundamental problems *OKW had no anti garrison for like 2 years* to develop top tier faction and teching designs