Molotovs are actually really good if you use them against charging squads while you´re in cover. Just drop it in front of you cover and wait til they burn or have to fall back.
Also if you don´t charge with squads into no cover to throw them they are really good. For 15 munnition they counter garrisons and also squads in cover if you´re in mid range combat. Soviets also have oraaah. You have to use your conscripts together to help each other and molotovs are only there to counter, what conscripts alone cannot. They were never meant to be strong as other grenades. They were mean to be cheap garrison/green cover counter that is used in conjuction with oraah and other conscripts.
Molotov upgrade is too expensive. Range and throwing time is shit. Charging squads will change position because the animation is very slow and you dont need to have a good micro to counter it. So its meh anyway. Same situation with squads sitting in garrison. Too slow, easy to change position. Or throw counter grenade with folks because cons will just stay while Ivan lighting the god damn bottle. Oooorah only helps against mgs, long range units or when you need to change position very fast. Oooorah dont increase the speed of molotov animation. So, its slow, very easy to counter, expensive upgrade, poor range. 0/10 - defently sucks.