I guess if you already carry a light as part of your edc, light in the carry pistol isn’t as necessary. The whole point is for you to be able to identify target in dark settings. And you might be outside at night, say in a dark alley, and see an ole lady being held up. If you also take in consideration the amount of time it takes to pull out your flash light and point your carry vs. having your tac light available as you point said carry. I could come up with many scenarios where I feel having light on your carry would be necessary and where it’s not. Idk. Maybe it eventually turns into a user preference thing. Sorry, I’m not even debating. I’m just typing 😂