ok but they are virtually the same
Not at all. Thermal scopes only look at the infrared spectrum, and people become bright white because they are warm. It is practical anytime you want to make humans visible.
Night vision is light amplification. It uses whatever visible light is visible in an area and amplifies it to the point where you can see. It is only useful in the dark.
But anyway, I saw it being used in the infamous mod video, and its just another skin for the RDS. Its no different than the other three red dot sights that are are functionally identical - its just a preference thing.