It isn't even close to the same.
In daylight / low light you are picking all kinds of reference from both eyes as to where your pistol is. In the dark, you're either grooved or you're not. And one eye in a straw isn't gonna do shit other that find that POA.
In fact a standard NS is far easier as the glow is visible to your peripheral vision at all times. The dot, if the angle is wrong at the high 2, that error will grow as you extend. Make sure to include some fun stuff too, like pick the weapon up off a table / the ground. The dot is very much harder to work with in the dark. Reference beyond how the gun feels in your hand is largely gone in the dark.
