You just speak my mind.
As a 2vs2 Ostheer player, I don't really see much use in using the Panther right now: everything is so so mediocre and it doesn't really do anything against infantry. Like the only thing it got going for is speed and high durability.
Which Allies can just lay cheap 30muni mine to denied the "speed" for flanking and high durability also meaning easier vet gain for Allies TD like SU-85 / Jackson (which by feeding them to vet 2 or 3, my panther even when showing frontal armor is not that good anymore)
I rather just going for the Brumbar + Elefant + PG Sherck right now to outright destroy Allies TD / Infantry / AT gun in 2vs2.
I know that if we ask for any form of buff for Panther will result it being spam in other games mode so I'm not gonna touch on that, I'm just express my mind that in my 2vs2 game (Usually Top 100), I rather going for my combo then getting a Panther out which is not a threat against Infantry like the Comet or T34/85mm and also a vet feeding system for SU85 / Jackson.
P/S: if ya people play lots of 2vs2, those Alllies do lay down lots of mines, explains why I don't really like to Blitz a Panther to flank (which it penetrate and accuracy is not even that good lol)
You described the 2v2 environment very well 😊