That's all good and fine, and its never a bad move to get more training, but using ambient light and leaving my light off is my preferred method until there is no other option. What is yours?
I'm just curious, have you ever taken a low light firearm class or are you basing your opinion off of personal exploration of your house in the dark?
If the latter is the case, it's not wrong and it's better than most people have done, so long as you have thought it out and trained with it, but it's certainly not best.