Not 100% sure if laser wattage matters. I’m sure if not a higher wattage just does it faster. A YT search for laser pointer camera probably would give you an idea.
After Looking at those vids myself it does seem wattage is a factor, and steadiness of the pointer does too.
Be very careful to adequately protect your eyes when using lasers. Different laser wavelengths need different eye protection

I’ve had the “put hands on the wheel” alerts but I just slightly grip the wheel harder for a moment and it corrects itself.
I agree with you overall