I dunno, I haven't seen this behaviour before.
When playing the [CENSORED] operation, on the third battle, my company of T-34s was advancing across the open ground towards a hill behind the second town. To my horror, I saw 2 KTs and 2 Panthers crest the hill 600m away with all my tanks at least 200m from cover. So I charged my T-34s and T-60s forward en masse, with my IS-2s behind trying to plink the Panthers at least at long range. If it worked at Prokhorovka, then it might work here, I reasoned.
Out of 17 charging tanks, 5 made it to the base of the hill, and 1 lone, brave T-60 got close enough to ping a 45mm round off the side of a KT before it died.
None of them stopped to throw smoke and all of them were charging along like good New Soviet Men. I don't think that the AI's behaviour is necessarily always detrimental to Soviets.