You're thinking of it in the wrong context. Grossman wasn't breaking down members of society. His Philosophy was focused on when LEOs had to take down someone that was very bad, someone that society on its own could not handle. For those encounters where the person being made contact with wasn't your average citizen. For example, there was an incident we studied in the academy where a FL trooper was gunned down. The trooper was an excellent trooper in almost every area. He scored perfect during weapons qualification, and in every respect was a model trooper. However, when confronted with an armed suspect (that charged him firing) he balked and was gunned down. The suspect was a Vietnam Vet that charged him with an M14. There is dashcam footage and if IIRC, you can hear the trooper screaming while the suspect was cold and methodical. During the fight, the trooper was not in a warrior mindset and was overtaken by the suspect (who was in a warrior mindset). This is similar to what Grossman means when he speaks of how to take on wolves.
The problem is that some officers can't turn it on and off and eventually see everyone as a suspect and not a citizen. The training is only meant to enhance a skill set, not to supplant it. LEOs just need to remember that the warrior is only released when all other options are gone. It isn't easy, but it is necessary to fight a warrior with another warrior.