You'd get a pack of them, they'd be able to counter their weight in tanks no problem, and you couldn't use infantry anti-tank because four SU-76 barrages would fall on your head every time.
You could, you just couldn't walk up to them across no cover, facing their front.
Unfortunately, the loss of versatility also killed the SU-76 in 1v1.
True that.
There are still scrubs who attempt false claims that soviets are light on muni use faction, which couldn't be further from the truth - they are faction that doesn't have infantry upgrades, they hog muni like crazy if you attempt to utilize all the abilities, which with time were all made more expensive as well(molos, oorah, aforementioned free abilities now costing muni etc).