So OKW is a blobbing faction. So it's soviet faction. Does this means they are both broken? Spamming is the easiest way to have an army that means something. Some people are doing it, some aren't.
Wanna OKW stop blobbing? Modify its design entirely, nerf a part of its units but give them a normal resources income. Who would need an OKW with same power as Ostheer but at 66% fuel?
This is the problem with faction differences for differences' sake. If they gave them regular income (which is easier to balance in 2v2 matches and up), modified the costs to copensate, and left the unit composition essentially the same, it would STILL be a hugely different faction but easier to balance.
I know they are trying hard at Relic, and I know they care about the game. But I have issues with two things they have a fetish for and one of them makes balance too hard, and that is the fetish for "difference".
Added: If they simply increased income to 100% and increased fuel costs by 50% they would change nothing in the faction and solve some of the 2v2+ problems. The faction wouldn't change one bit.
(The other is the belief in the myth of superior German military presence and technology. More on that another time. But yes, most of it is just myth.)