Statistics also show that most shootings are under 7 yards, and after action reports often indicate that the shooter was lucky if he or she reported seeing the sights at all, let alone lining them up. At 7 yards "front sight, press" is the name of the game.
Basically I have a hard time envisioning a scenario in which I can clearly identify a deadly force threat, but I can't see my sight edges at all, and a front dot only shot isn't safe, but a three dot shot is. I can, however, envision a number of scenarios in which perfect sight alignment is not necessary, but speed and an intuitive sight system (dot on target) is.
Basically I have a hard time envisioning a scenario in which I can clearly identify a deadly force threat, but I can't see my sight edges at all, and a front dot only shot isn't safe, but a three dot shot is. I can, however, envision a number of scenarios in which perfect sight alignment is not necessary, but speed and an intuitive sight system (dot on target) is.