Yeah, but everyone's teching costs look expensive compared to OKW. If you rush straight for armour as USF with no grenades, BARs, M20, AAHT or anything of the sort, you're still up for 140 fuel before you even start building your first tank.
I don't entirely disagree, but you're leaving out the fact that under those circumstances USF gets capable handheld AT (Captain) and a mobile reinforce point (Major), just for teching.
As for Karny's points, first of all I think there is a basic design problem with the idea that USF is not going to scale into the late game. It's fine if Axis have a slight late game advantage, but as of now USF doesn't even have a doctrinal heavy tank call in (note to Relic: this is NOT A REQUEST
for paid DLC, the issue is the design). Jacksons are made of paper and get shredded by T4 flak cannon, which is just LOL.
Beyond that, if you're having trouble managing Allied armor (with the sole exception of doctrinal Soviet heavy tanks, and even then really just the IS2/ISU) with Volks+schrecks, ordinarily I hate to say this but that is an L2P issue. Can you charge schrecked Volks completely unsupported against two T34-85s? No but you couldn't do that with PzG's either. In other words there are jobs that handheld AT was not meant to do. Meanwhile any single light or medium armored vehicle will get annihilated by schrecked Volks, as will heavy armor if the opponent is not careful.
Finally, Obers are totally broken. A single Ober squad can easily dispatch 2 or (depending on cover and how the engagement begins) even 3 BAR rifle squads.