The game has no shadow system or dynamic lighting, some textures are darkened, the flashlight and some lights just make the vertices lighter.
the game also has downgraded audio to quality of that time, vertex inacurracy, textures downgrade and thousands of other functions to emulate the ps1.
it is kind of hard to accept a criticism from someone who didn't even play the game. i make horror games. if other studios focused on another style than horror don't use this aesthetic, i don't think it is the fault of the horror game developer community.