And again before we get a wave of the bog standard "OMG they put their lives on the line for us, you don't know what it's like" apologetics... this is not some unreasonable standard.
I compare this to soldiers. In Afghanistan I wasn't dealing with criminals. I was dealing literal killers. People who would, without fail, try to kill me the second the opportunity presented itself. I assure everyone I had days where I was more tired then this ditzy broad had ever found herself (Taliban really like launching rocket attacks in the middle of the night 3-4 days in a row assuring you won't get sleep) and I doubly assure you I was waaaaaay more distracted by my horniness a lot of the time then she was ("I masturbated to an extra curvy piece of driftwood the other day!") and my entire training including bootcamp, SRF A and B training, and the month long training specifically for combat... added to maybe two months.
And this was a FOB of several thousand people, under routine attack so nerve stayed pretty frayed, in horrid conditions and you know how many unlawful shootings we had in the year I was there? One. And that was some idiot civilian contractor who accidentally let one go into a clearing barrel and decided the smart thing to do would be to argue with the range master. Nobody even got hurt.
If you can take a GED educated 18 year yokel from Dishrag West Virginia, train them for two months, and plop them down in 129 degree Kandahar against the Taliban, and get them to understand and follow basic Rules of Engagement and Escalation/Descalation procedures it... ain't... that... difficult.
And I managed to not murder anyone and if I had I would have been punished severely for it and I would have deserved it.
All it takes is a cultural mentality.