A bit disappointed with a missing detail in the quest Shift Change

During the quest where the Monolith Soldier is begging you to kill a controller for him and free his friend from it you come across multiple Monolith Zombies. In the original stalker games I swear there's a moment where you're traveling with a group and they get controlled and turn zombie, but that if you kill the Controller without killing them that they snap back to their senses. So I ran through the dozens of soldiers taking bullets because I wanted them to live. But after I killed the controller without killing a single soldier they stayed zombies. I was mega disappointed all my hard work was for nothing especially since they hinted you could save them because the other Monolith soldier is actively resisting the Controller and can be saved by killing it.