I really don't hope that Relic would increase the Soviet AT power on the Soviet heavies. The ISU152, and IS2 are already powerful anti tank weapons and they completely destroy infantry. SU85 have very long range and can take on a Panther on a front to front battle. The Soviets have buttoning ability and AT nades that could potentially stop flanking.
While buffing their AT, AI capabilities will be nerfed.
Does a Tank have to be beautiful? Although i like that design as it was pretty functional: Low silouhette and the angled armor was a pretty good bouncer
"Have to" would be too much but yes, it "should" be.