Well… I might not be recalling properly, but before this light was applied you couldn’t see anything at night in many areas, even outside (before the eclipse, that is). Literally anything. That’s also not realistic, as your eyes adapt to the dark.
I believe this light tries to simulate that, your eyes adapting to the dark.
Maybe it’s a matter of configuring your settings? The way I have them, this “glow” slightly iluminates the very near surroundings. I thought it was going to be much worse. It didn’t end up disturbing my game. I still can’t see shit in dark areas at night over a 4 or 5 meters radius…