This.
"use a Panther" they say. By the time you "use a Panther" your army is charcoal. It usually hit the field when you have no serious counter (this including a PIV too).
How many times it frontal attacked several paks killing them and escaping? Countless. So it really doesn't matter how "good" you are using your paks.
Just get close with pzschrecks or pzfaust and that means squad wipe.
Only chance for soviets? Just... lol.
What german unit can enter unsupported in the soviet base, erasing half of soviet army and escape with minimal damage?
Umm, if you are unable to get a P4 before 16-18th minute of the game, then let me tell you this-KV-8 is not an issue here.
And about PaKs, Brummbar does exactly the same, without a doctrine and from better range.