idea for finding rare monsters and backtracking with light radius

Hi, I just wanted to propose the idea about the backtracking problem in maps.
The rare monster detection could be combined really well with light radius imo:

-increase the default light radius by a bit and/or increase the scaling of light radius
-permanently mark rare monsters on the mini map when they get close( distance based on light radius multiplied by a factor x)

This would make light radius a worthy stat and fight the backtracking especially in tight maps like vaal factory.

thx for reading :)