I agree that it should be done by the books, especially for the reasons you posted. The normal human factor, or emotion, will and does play a role whether we like it or not. Police officers in general in most places as far as I know do not get half as much training as they should, both on the martial arts/ physical element and also the control emotions/ de escalation.
I could tell stories about the level of preparation some get based on whatever an incompetent person with power decides. I have fiends that were invited to 2 hour seminars to teach officers martial arts "moves". People that were trained in classical Japanese martial arts that need one to train for years just to get the body and sensitivity to a place where actual technique can be learned. The value then of such seminars? Feck all. You will often see videos of officers trying to submit some suspect and they will look super incompetent or worse, way to aggressive (they are trying to compensate a lack of skill). It is because of a lack of training and the issue here is not with them, the police men and women, but with the higher ups and even politicians.
I also had a mere last week and I'm sorry for some of my aggressive posting and off topic remarks.
