It will not make it UP, but balance it.
It is balanced.
You not being able to accept it doesn't change the fact.
T34 hull MG is broken, it makes as much damage as both MGs of P4. While P4 will shoot at different dargets (most time) T34 wilö focus on one model. If it is a PaK-crew that is like sniping them. Also the animator is broken, it shoot while not indicate the fire.
Read patch notes.
Alternative was buffing the gun itself. Up for that?
-> normally that is something nobody has do speak about, it is broken.
Nerfing the MG of T34 will be a reason why P4 is more expensive. It will still have the ebtter AI gun.
Normally reading patch notes is a good thing, do it more often to look less stupid and entitled in the future.
P4 is more expensive, because it has much better armor, much better gun(both AI and AT), can shoot at planes and has much better vet.