Exactly this. Try to be aggressive with any T4 unit and you'll throw the game so quickly. Your other option is to camp and you'll get obliterated with Stuka. By the time you have enough CPs for call-ins that allow you to be a bit more aggressive, German will have enough heavy armor that the game is basically over. Plus Relic really don't want you to have BOTH T3 and T4 as soviet, so you're left with very few options. T34/76s just provide way more utility to help your mid-game than SU-85 could ever hope to, especially now that its AT has been buffed.
SU-85 (and the whole T4 tier) needs attention.
Yeah I mean that is the only way to go now with soviets I completely agree and that is what I do but on maps like ettlebrook or lienne forest where there are choke points (also the 34s dont do well here because of inability to flank) it would be really handy to have the 85 again as a VP defender or using them to snipe across with inf spotting and still have the mobility as a reversing su85 is harder to flank than just driving past the at guns or having your at guns takin out by anti inf/support weapon call ins or just inf in general.