Awesome how you just waltz in here after not playing for....how many years now?...., completely misread the point of the thread, and tell us "kiddies" we're wrong about balance.
This thread isn't about transport survivability in general - that's a whole other can of worms that's been addressed in excruciating detail in a number of threads.
It's about two transports in particular that offer much higher survivability than others without sufficient drawbacks.
It does not matter how good you are at killing transports, if a transport has sufficient durability by virtue of its hull and regens, it will make it to the next base.
In case of the Salvager, this is taken to such an extreme that in most situations, the player can afford to just avoid interaction with an attacker entirely and solely "interact" with his or her thrust key.
Then target the truster, this whole thread is because he lost a fight, most Nerf nerf nerf! posts are.