I think people just respond to the hunger messages with an urgency that is probably not warranted.
Granted, it doesn’t take too long to get to the point where the game is telling you that you are STARVING! so naturally at that point you are pretty much prioritizing finding food over everything else. I myself have never waited around to see how long it would take for ‘starving’ to turn into something else, like death.
This is, admittedly, pretty much how people react to hunger in real life. So maybe it’s perfectly fine as it is.
The problem, as noted, is that there is simply so much food around that it is extremely rare that you ever have to worry about finding out what happens after ‘starving.’
There’s no looting happening, but what about a mob that wanders around gobbling up food items? Perhaps mutated giant rats that can pretty much eat anything. Whole cans of beans, etc.