Quite frankly, if this mod didn't have that sense of realism, I doubt so many people would play it.
Minecraft is so far from realism it's long distance to call out, and IC takes it still further away from anything remotely approaching reality. Even if you were to pretend machines are room-sized monstrosities instead of the minifridges they actually are, there's absolutely no reason they couldn't be moved. They are routinely moved in reality, and even if they were immobile, what's the justification for breaking them?
Are you seriously trying to tell me thousands of pounds of copper, tin, redstone, alloy, and coolant just vaporizing when a wrench is used... is realism?
What planet are you on, bro? This is Earth.
Besides the example of the Soviet tank factory moving, water desalination plants are just picked up wholesale and moved to disaster zones. Entire factories have been moved across oceans as heavy industry is outsourced to Asia.
In fact, the very first factory in America... was moved from England, by Samuel Slater, in 1790.
Good fucking thing they didn't have a wrench failure.