You shoot until the threat is no longer there. No disagreement between us. I was simply noting the statistic. I do question why 6 rounds from a revolver now requires/equates to emptying a magazine from a Glock. The answers could be legit. But training hammer drills vs double tap for response is a valid question.
Note that, for both revolvers and semi autos, the number of shots fired typically was “all the rounds on the gun”.
It could very well be that 5 or 6 rounds were enough to stop the threat. And it could be that more cops were shot after they had emptied their revolver and before they could reload.
You're in a life or death situation.
I'd also ask for those who have been in actual combat how effective is their shooting.