It does have extremely clear role. That role does -NOT- include going up against dedicated TDs and winning, unless you flank.
You being utter garbage player and incapable of utilizing that role does not mean it hasn't it.
Also, you'd fail just as hard with M36, so what's the difference for you?
If you'd like SU-85 more then panther, then I've got a briliant advise for you:
Don't spam panthers and build that JP4.
I virtually never build panthers as they just are not worth their cost. They are flat out erased by long range self spotting tank destroyers. A pak wall backed by a stug will do a far better job at a cheaper cost. As usual you demonstrate your incompetence and warped hallucinations . Perhaps if you spent less time on forums and more time playing the game you might get it but i'm not holding my breath on a lost cause.