I'd just treat it as meaningYe, main problem for me that soups dissapear from inventory cause it has "food" type, not "raw food" which is described in difficulty. Means its just unclear wording in description and i have to save before every sleep and day/night cycle with it taking random amount of food each time i reload until i roll only 1 food "spoiled".
Any food that is made from a "Raw" food
.Someone could always try and make a mod that changes which foods get spoiled per difficulty. [Not me though, when I do play I use cheats on hard difficulty, so isn't an issue for me]