Jim, I've found that the skills break down after the first round of incoming for most. Never mind the 2nd or third one.
Civilians certainly would need night/low light shoot techniques and should be versed in low light shoots. Most shoots have participants that miss at almost contact distance day or night. In low light you will need to be able to index the weapon in the hands properly so you know where it is pointing.
In low light training, targets were missed at 5 yds regularly as the person can not index the gun properly without looking at it and of course thats going to tbe hard to do in low/no light scenarios. Night shoots also bring out deficiencies in other areas like stance, indexing the firearm so it points where you are facing naturally [ called the NPOA]. Most rifle shooters at long ranges will know what that is and the importance of having it. It applies to handguns as well but doesn't get much attention until you shoot low light conditions.
There are no absolutes, would you rather have the techniques developed in case in ever happens you need it or would you rather not have them and then one day "woulda, coulda, shoulda, happens and you are at more of a disadvantage than you had to be?
Shot low light in competition for years every third Sunday at 7pm. You are well disadvantage to not have an idea of what happens in low light shoots, how muzzle flash affect followups, how to use one eye closed to preserve any night vision rom the flash, how to stand and hold the weapon so it is indexed where you are looking [ this is even considered by people who only shoot during daylight as they have no probelms with indexing when they can see the gun and assume [ wrongly ] that if they have it down during the day, they will after dark. Doesn't happen that way folks.
If it can happen it will one day, prudence dictates we prepare ourselves for all possible scenarios that can be thought of through imagination or actual prior events related through medias of various forms.
While you are at threat, or believe yourself to be, it would be nice to be able to cover the subject whose a dark shadow at best from any distance. You may not know he is a threat, he fires on you, you respond in kind, even at 10 feet, moving targets and indexing them like you can actually see the sights, but can't can be a determining factor in your survival.
No night/low light training? I'll take all I can get thank you. I've seen what great shooters during the daylight can do, in lowlight they fall apart, no training and have no clue how to index a gun they can't see.
If it was easy, everyone could do it, it's not and requires practice and more practice until you develop a sense for where your weapon is pointed without having to look at it.
Brownie