Can you tell the difference between a good counter and overdoing it? Of course the thing is supposed to counter infantry, but it's just too good. It can not only counter infantry, but it can also resist tank shells. Even the Elefant rounds sometimes bounces off the KV8. How would you feel if the Elefant shoots as fast as a Tiger and have blitz? Should I just reply "well it's supposed to counter tanks anyways." There is a line to which it's too OP. Taking out a Pak gun and a Pgren squad? ok, but all of that and running back to base with a Stug hitting it's rear all the way home? a bit too much.
Would making it slower make you happy? So that sad stug can actually overtake it and kill it when the kv-8 is halfway home? Practically anything pushes off AT guns(obviously paks are the ones tortured the most), so them dying is very common. I myself get ansy when just one guy dies in my panzergrenadier schreck squad... but once, i microed a pak and two schreck squads, killing 6 t34/85's... (8 at once! My panther got aten in 5 seconds and only killed one) of course, allowing such a thing to happen means my team lost a long time ago, but intense microing of panzerschrecks can sometimes be very effective... would a slower kv-8 getting hit by a pak a few more time (more shots might penetrate), schrecks can somewhat dodge it and fight a little before retreating, and the stalking stug actually kills its target? Not the KV-1, though. That thing has the same AI as the t34.
I just find it really weird sometimes. My two teammates with 2 panzer IV's were not able to kill a KV-8 (and both were truly shooting at it, ignore the more important t34's) and all i did was a pull a pak from my base, hit it a few times, got vet and targetted weak point, and then it was dead in less than 15 seconds, in which my pak nearly penetrated all shots (i flanked its back) and only two grenadiers and apparently several friendly paks/zis (somehow? I dont even know...) were killed.
And then as russians, my silly teammate thought he could roflstomp the enemy by sneaking an su-85 and a kv-8 to their base. He managed to kill tier 1 and 2, but two panzer IV's fell back to the base and destroyed them.
Skill and RNG, i guess. Who knows?