Not that it is of any relevance here but I played more allied games than you.
Yet another flawed theory, because SU-76 and SU-85 the 2 Soviet TDs say halo.
Since you determined to derail yet another thread, I have to bid you Goodbye.
Have a nice day.
In team games most players go straight to TDs as most axis players will go straight to Panthers. It's just natural that you build the counter to a unit you know is going to hit the field. The will be the dabble of LV play but AT guns and AT infantry can deal with those.
Non-premium medium tanks struggle to find a place where they belong as the panther can often just reverse away and axis mediums will only have a short window before TDs roll out.
I'd be happy for the Jackson/Su85 (not sure about firefly) to get a small nerf if the Panther was toned down too. This would hopefully encourage more medium/LV gameplay too.
Just throwing ideas out there as ultimately allied TDs simply cannot be nerfed with the current state of the panther.