I get your point, but only one OkW building fires a weapon. And if you lose that your delayed and shit out of luck to anything in that tech. Meanwhile we are talking about motors, supported by bofers, supported by AT guns. Big difference. Not to mention OkW buildings don't press a button and magically become near invincible...
Well, only recently there was the infamous ISG meta, where you parked 2 ISGs near schwerer HQ and med truck little behind.
If that isn't the definition of sim city, then I don't know what is.
Sure, okw trucks are tiers, but so were brit trucks in coh1, I don't see nearly half the complaining about trucks as I see about people being literally terrified of emplacements. It might not be the most pleasant playstyle to fight against, but its there for much longer then a year now and the brit emplacements have clear, exploitable weaknesses you can abuse, like sustained ISG barrages, incendiary mortar or simply exploiting brace cooldown to one shot them with off-maps and emplacements still put greater economical strain on the player then okw trucks by having popcap and therefore upkeep alone.
We have valid and strong sim city playstyles for a long time already, its the OKW meta since forever.
Brit emplacements aren't even close to meta.
Allies get the option for it and suddenly everyone loses their mind.