If you click on the link, as pointed out twice before, it says:

Soup is a primarily liquid food
Nothing in there about it possibly being defined as a drink under certain circumstances. One case of Wikipedia claiming that it "may be defined as either food or drink" compared to two cases of it unambiguously calling soup a food is not helping your case. In fact the word "drink" does not appear even once in the soup article. Because it is unambiguously not a drink.

I think I will take the word of food service industry professionals over lonny bob. And people who work in hospitals. Everyone knows hospital food isn't real food.