Light propagation in water is wrong

Unlike the Java Edition, the amount of light seen by the player underwater changes globally as (s)he ascends or descends. For instance, they go underwater, see a lit ocean floor, they descend, and all of the sudden it's dark. This makes no sense; the amount of light should merely propagate from the light source (sun or whatever else), decreasing in intensity gradually. Because of this, going into water feels entirely wrong. Similarly, if I stand next to a light post in real life in the middle of the night, just because I'm close to a light source, doesn't mean I can see into the dark; it just means I see where the light is.