I agree with everything you just said, sorry if I misread your tone and for being a bit dismissive. We are actually saying the exact same thing - a unit should be viewed through the lenses of the meta, not in a vacuum. The Su85 nerfs were put in effect so long ago that the tanks it used to fight (and the infantry supporting both sides) are completely different now. I completely agree that callins meta is preventing us from evaluating core units. That said, it is my position that the Su85 currently underperforms for cost, not because I want the glory days back, but because the medium tanks it's supposed to counter can a) flank it easily, b) penetrate it at all times, and its poor mobility means the Axis superior antitank infantry support can chase it off in an engagement and/or hunt it down effortlessly.
An example how I think meta affects this discussion : if the Su-85 had the exact same stats and was up against the same tanks as now, but Soviets had Schrecks instead of the Germans (let's say parallel universe) I would probably think it is completely fine as is.
No problem, I'm glad we agree. I feel the same about the performance for cost. It is quite expensive for what you currently get out of it and Ostheer have the same issue with T4. Everything you get from that tier is not cost effective. This is another reason why we are in this call-in meta trap.
I would still like to see it used more in a correct meta before making actual changes. I also think this unit performs a lot worse vs OKW than vs Ostheer (mostly because of the panther and mass volks shreks).