I understand your concern, but having a light on a handgun does not mandate that you have to point your weapon at someone to use the light. Even if we constrain the application to the use of a mounted WML only, i.e. no supplemental handheld and the WML is not removed from the gun and used as a handheld, which is an option, there is still a way that a WML can be used - indirect or bounce illumination. You can bounce the light off the ceiling or floor. Of course this assumes we are in a situation where our drawn gun would be justified.
Removing constrains, a WML gives us additional options. We can carry a supplemental handheld as search/redundant light ("one is none, two is one" - don't know that I fully agree with that but it is a commonly taught axiom.). We can carry the WML off the gun as a first response handheld, then if we feel the situation justifies drawing our gun, then we can mount the light as we see the situation calls for.
Just some thoughts.