If you like that much cheese, I can send you some from my country. Why every SU strat would be cheese, have you read the definition of "Cheesy strat" recently? Because what you describe, or units you spell aren't cheesy at all.
Don't fall into that fashion to try to discredit everything you don't like simply to no argue on it.
If we fall for the strict definition, it should be a inconventional strat which is meant to take the opponent by surprise.
Since there is almost no element of surprise (you can scout enemy base in FoW n you see commander loadouts), cheese on CoH2 generally relates to any "spam" or rush of certain units which might be OP or overperforming.
Or maybe you have difficulties with definition. Blob isn't equal to use a large amount of a same unit spread in cover and flanking in a global push. A blob is using a multitude of units, not necessarily the same one, in a unique group and moving it as a death ball, you compensate the vulnerability of not taking care of game mechanisms by the number of units concentrated in the same point doing the same movement and actions and his potential fire power.
You can make use of a death ball and then spread out when engaging the enemy or when danger arrives (spread out those marines!).
Now, your thread from July didn't reach a complete page on that forum, it shows how people care about it at that time. Everybody was using (after buying) the rifle company. Myself I found the reco commander useless at that time and today it is in my 1vs1 and 2vs2 commander pool and I'm using it, having great fun with.
That shows how you don't need the approval or acknoledgement of the mayority of players to know something is gonna be OP or broken even if most people don't use it or think of using it.
I will say it again, USF was unplayable at the time, no one unlocked that commander yet and why bother with the Greyhound and it's gimmicky ability when you could rush a AA-HT faster and even compete against the Puma (if your opponent missmicro).
Now you say more or less the OKW brought those issue but you try to hide it behind the WFA expension. I'm not really sure USF brought that much of game change for the Ostheer faction. Actually it only requires some minor tweaks to make the matchup completely balanced.
USF: rifle bar blob (before nerf) or even RE spam (before volley fire nerf) use to be a thing. Once you get your upgrades from your base, major + ambulance or even the Cpt foments some kind of blob/death ball. Thing is since Zooks are garbage and OKW blob is better, you are better going for a heavy tank play were you focus on wiping squads with either Scots or HE Shermans.
Regarding OH: it mostly force a lot of players to use Mechanized Assault for Stug-E into Tigers and a fast T2 to counter the M20, AA-HT or nowadays the Greyhound. T3 can be tricky since Jackson hardcounters it. Either you wait for the Tiger or you make AWESOME use of Mgs+Paks, which on some maps, can't be use at all.