20m, yes it is pretty much impossible to hit a target while firing from the hip without extensive practice. Cops don't have that amount of practice, but also rarely fire non-lwthal weapons from that far away.

At 5m the bullets will most likely be hitting a human sized target. Note the range they are firing from the shoulder in the video and assume the comment was about similar firing conditions. They can't aim for the face, but they can still pick their targets.