I think a major problem comes from the OPness of Axis hand-held AT, mainly shreks when used in blobs. And also explains why people like ISU (and to lesser extend IS-2) so much. They are the only Allied armor that can reliable scare away Shrek blobs.
Well obviously axis play terrible but the Soviet players should have crushed the axis way earlier and decided the game. It is their own fault they let the Axis coming back after so many losses.
Allies need to get an overwhelming volume of fire, be it armour or indirect fire, to stop Axis late game.
A recent 2v2 Dane casted highlighted this where the allies won by the skin of their teeth (about 30-40 VPs or iirc) despite outrageous blobbing and losses by the axis players. It was only a unit of Obers and the like (which proved increasingly ridiculous as the game continued) that kept the Germans in the game at all.
I just see some massive soviet failing there. They could ve pushed over the battlegroup HQ and panzer HQ with ease.
Furthermore the SU-76 spam is just idiotic once you know they have Tiger Ace on the field.
Also they could ve easily pursued the Tiger Ace with anything, the strafe was providing vision for them.
Besides that he should've just opted for Barrage on their retreat point just after a blob retreat instead of those in my opinion badly aimed barrages I keep seeing.
Ostheer has Brummbar which is actually pretty good.
The biggest problem comes from the range it can fire/see + mobility.
Elefant is not really a problem anymore because of it's narrow spotting cone when activated + it does not kill infantry and is really slow so very prone to being flanked or engine disabled by handheld AT and even you can just do infantry pushes next to an elefant while ignoring it, hell even just bring AT guns into firing range I mean not really a problem.
The thing with ISU is that because of the spotting cone, autofire and firing range it will kill incoming infantry before them even being able to spot the ISU and the ISU when turning off spotting cone becomes quite mobile being able to get out of harms way relatively easy.
There are multiple solutions to this, either make it see less far, shoot less far or make every shot require player action so people have to actively control the ISU.
The problem with Jagdtiger really is the range at which it can fire trough anything. I think the easy solution for this is just make every shot require player action because honestly these things are very fragile for their cost and even though they take some time to kill once you get up close with other tanks, AT guns or some infantry they will just be chain shocked from all the incoming fire and die like a fly.