Normally you’re pretty spot on, but this is about the worst advice on low light I’ve read to date.
How so?
I will elaborate:
Pistol shooting works according to the same principals as any other tactical shooting. And through training and repitition you present with muscle memory to your sight line.
Whether you are using a MRDS or iron sight (my preference) you instinctively obtain a sight picture.
When shooting low light and no light, your weapon light illuminating the target actually helps your sight alignment due to the contrast.
The light options for pistol are best limited to 200lm and under and ideally find a medium spot with wide and soft edge lighting. You do not want to have a spot light, and you want your reflector to give a flood effect with soft edges to aid your eye in identifying other targets.
Anything over 200lm will reflect off lighter surfaces such as walls resulting in a detriment to your ability to see when your light is off, as well as minimizing your eyes ability to register detail outside of the lit area.
Most pistol lights are designed to meet these criteria.
As for a laser, when using a light, you can use the center cone of the light to instinct shoot on close targets should you need to, and a bright light can overwhelm your laser.
Additionally, the current MRDS provide a more familiar muscle movement to aquire and are less perceptibly impacted by shooter input on the pistol. Minor movement by the shooter moves the MRDS a milimeter within the shooters eyeline, while a laser may move inches, or feet downrange.
The other issue with a laser as an aiming device, is that the laser may be obstructed from the shooters veiw by the pistol itself causing the shooter to have to adjust their position to aquire it, or switch sighting methods anyway.
When compared to a laser the MRDS greatly improves long range pistol engagements. And for close range most shooters can instinct shoot or if they are equipped with a light, use the light as a pointing aid.