The munitions income was take to percents between 100, 80, and 66 a few times, which is exactly what you said would constitute a major change forcing a rethinking in meta.
Meta for OKW has shifted a lot, the Obers nerfed forced players to rely on call in infantry which are much more efficient. The Volk's nerfed made OKW players have to rely far more on the Rackten then before, the KT nerf has made the KT less effective when facing smart players encouraging OKW players to simply use different vehicles in combination rather than 1 super tank.
The Jadgtiger got a major change, tons of other OKW units have been messed with in similar ways.
This is coming from OKW fanboy numero uno, I know what my favorite faction is best and worst at.
The only time OKW underwent an actual faction overhaul was during the WFA Alpha, after months of the community begging for it (rightly so) because their initial design was flat out stupid.
Everything you've mentioned and tried to claim as a "drastic faction change" or whatever your exact words have been simple balance adjustments and haven't even come close to changing the core design behind the faction.
Their tech tree is literally exactly the same as it was on release. Volks have schrecks, Kubel still suppresses, KT is still the strongest individual tank in the game. Obers are still the strongest individual infantry in the game. Pretty much all of their units still serve the exact same purpose as they always have. JLI are probably the most changed unit OKW has, but even then they serve the same role that they always did.
Not every faction needs access to everything, and not every faction needs to be strong at everything - if we want that, just design one perfect faction and play mirror matches all day everyday.
As much as I'm hesitant to agree with Katitof (because all you forum warriors are silly to me) he's definitely right in this case. You don't really have a leg to stand on aside from being stubborn and unwilling to admit that you're wrong.