The only one showing lack of comprehension here is you.
Armoured vehicles were not and are not designed to fight death matches against enemy armour with third-person camera and no logistics/repair concerns. They were and are designed to spend the vast majority of their time engaging soft targets and then being good at engaging other armoured targets when the need arises.
We never, ever fight any battle in WT that even remotely resembles the conditions these vehicles were designed for. That’s because gameplay and fun take precedence. It also means that vehicles have to do wildly different jobs than they did/do in the real world. And they are worse or better at those jobs depending on a high number of variables.
The PT-76 was not designed to go brawl around a cap with enemy MBTs. Against armour, it’s less effective than it would be in its actual intended role. So, it goes down in BR to a point where it can be effective against the one opponent it gets to face in this game - enemy armour.
It’s not a hard concept to grasp, bro.
The only postwar tanks that actually rely on armour (American/Soviet/French heavies and TDs) can be one-hit-killed by the long 88 of the Tiger II even at insane combat ranges. Especially thanks to the bullshit magic of APHE. You can snipe the cupola of a Foch at 1km and kill the whole crew. You can snipe the LFP of an M103 and send it straight back to the Cold War. On competitive grounds, everything postwar that has armour is still balanced in a downtier because even with vehicles a full BR below them you can kill them frontally, let alone kill them by exploiting situations and flanks/using your brain.
Also, all of these heavy vehicles fire standard kinetic ammo for the most part (a few exceptions exist, like M103 and SU-122-54).
This is much more common for postwar designs: medium tanks with great pen and no armour. You know what it means? It means they can kill you, but also that you can kill them without even having to aim. You can kill them with a Puma. You can kill them with a Pz III.
The things that differentiate WT and WoT are the lineup system and the different implementation of “health points”. Another major point is that WT sticks more closely to real-world designs. There’s nothing in there about re-creating historical battles or being a milsim.
The logic is that it’s fun. This is a competitive shooter game, if two tanks fighting against each other are competitive, that’s all you need to have fun. Who cares when they were made. If I want historical experiences I play The Troop or Steel Division 2. Not a bloody MMO shooter lol.
Also, you really don’t understand why a PVP game needs to prioritise balance of all playing sides above any other consideration? Think about it for a second. Maybe the answer will come to you.
Ohh, don’t worry, the serial production tanks we have in the game also lack all of their flaws that made them death traps in real history! My Jagdtiger never had to worry about the transmission exploding! Early T-34s with a two-man turret have the same targeting acquisition as every other tank because of the third person camera!
You are asking this game to be something it’s never meant to be.

