LEO firearms instructor here, we teach center mass, save the trick shots for the video games.
If the SHTF you get a massive adrenalin dump into your system. Your heart rate will jump to 150 plus. Blood will be drawn to your core away from your extremities, away from your hands and fingers and the fine motor skills they are used for. Your eyes will loose peripheral vision, you get tunnel vision.
Fine shots like shooting kneecaps or elbows are just not possible for the average Joe, which 99.9% of us are.
Now a SHTF scenario is a sudden & unexpected life or death encounter. Not a planned response.
One can train for a SHTF scenario, like specialized military or law enforcement units. In the law enforcement community these specialized units are rare where you have a full time unit that can devote the time needed for this type of training. I cant speak for the military.
As far as I know, center mass is what is still taught today.
Years ago we taught 2 to the body & 1 to the head, the "El Presidente" some of you may know.
Remember, as a LEO we are accountable for every round fired down range. A miss is a law suit in these times. This applies to non LEO's also.
Practice center mass, it may save your life and your wallet.
I see Ginger's anatomy target, something like that is OK as long as you go for center mass. Head shots are for snipers, not pistol packers.
We use the Hostage Targets where a bad guy is behind a citizen, etc..
We use these targets to teach shoot don't shoot and to reinforce the skills it takes for fine motor skill shots to small targets like a head or partial head or body.
It all comes back to center mass shots.
Most LEO's are not gun people and don't even own weapons other than their duty weapon or a personal off duty weapon.
A lot of recruits now a days have not handled or fired a weapon prior to the police academy.