Sov is the best allied faction(not best overall, that would be wehr currently), but not for a single reason you've mentioned.
The core army is able to respond to any situation and threat and adapt, just like wehr is stronger then OKW in that regard.
You need just as much micro if not more with soviets, because units have lower dps therefore stay longer in combat even if they are winning, therefore require -MORE- attention.
If model count had anything to do with what you're trying to assume, osttruppen, panzerfussiliers and paras would be the best and most spammed infantry in game.
Wipes 80% of the time depend on your ability to take and leave engagements then model count. If a 6 man squad will be waiting to last model, it'll be wiped just as easily as 4 man squad waiting for last model before retreating.
Soviets are also mostly picked for exact same reason wehr is - they are part of BASE game, which people get first from promotions, discounts and humble bundles.
u use every moment to dumb yourself, right?
so...you wanna tell us that is the same issue to lose a 6 model squad like a 4model squad which wipe much more often be the first hit from tanks, grenades, indirect fire and so one?
and if u could count you would realize that you must often retreat your wher sqauds when losing 2 models...and not like a 6model sqaud where you can lose 4 models and will have even than the same chance to not get a wipe.
sov is the bets faction to learn the game when you start wioth this game. wehr is maybe the best in the hands from the best...in the hands from starter and well know player...sov is totally easy...
if u would suggest ost over sov to a starter ---you would be evil.
ost has so many issue...but strength when u master them.