They probably wanted to add frosted window film to the glass, but then liked how the light comes into the hallway.

I think you made me discover a whole new genre there:

WHOLESOME SHITPOSTING

I have that same outside light fixture. It’s shit.

I’d do that just for fun.

If it looks stupid, but it works…
There’s still a chance it is stupid.

I’d make sure to look through it every time someone knocked on the door.