From: Hong Kong
imo, it also helps in facing human players under the assumption that u have enough flaks and the GER play less attention on bomber EV (the area i never tech-up, but others may disagree).
however, i think the biggest threat to RUS is the panzers. eventhough it does matter to tech-up and build more flaks, the top priority for RUS is to tech up their armor and art, esp true if u got an early barbarossa. as RUS will be outnumbered in the armor dept until at least '43, RUS must make tougher armor units that survive. i got a game as GER where i double-team RUS, GER outnumbered RUS armors but RUS armor got EV of 10!!! a real headache to GER until i surround and cut the supply of the 7 RUS monster tanks horde ...
of course the above is only true for a barbarossa b4 '42, im sure RUS can deal with GER with relative ease for late barbarossa and can crush GER if there's no barbarossa at all (unless by that time, London has fallen and the GER rule the sea ... but if thats the case, GER should have already won by AV)