Okay kiddo, have you ever heard of a game where people give each other pretend awards for silly things they did? Well, sometimes people do that in real life too!
The "bent spoon award" is a funny award that people give to restaurants when they give them bad, broken, or dirty utensils (like the spoons you use to eat soup or ice cream). Imagine you went to a restaurant and your spoon looked like it got run over by a car. That restaurant might get the "bent spoon award" because it means they didn't take good care of their utensils.
It's like a gentle way of saying "Hey, maybe you should pay a little more attention to the small details, like giving your customers clean and usable utensils!" It can be a lighthearted way of offering criticism, instead of just complaining or writing a bad review.