March deployment patch allowed 100+ win streaks for good players on ost and allowed bad players to compete against top players in long games that would've been stomps otherwise.
Even OKW infantry on release wasn't as bullshit overpowered as march deployment grens, they literally roflstomped any other infantry unit without even giving them a chance.
What you've said is nothing compared to march deployment patch. The sole fact so many people remember that despite it being first year patch speaks volumes about its impact.
Hell, I managed to pull of 1h+ game against Jesulin back then just because I picked ost and his superior skill and micro got literally nothing on a-moved grens.
I remember that, strat in all modes was 4 grens because they would absolutely stomp every other unit in the game.
I also think there was another time when something bugged out with grens and they had insane accuracy for a patch. It might be the same one its been a while but I remember grens instant killing models.