Lol, why would she be mad about that? Makes them cheaper to feed, honestly. Crickets get expensive fast, particularly when you factor in how much food disappears into an adult iguana. Our growing beardie would happily eat through 20 dollars worth of crickets in a week if we let her, and the smaller of the two iguanas I had grew to easily 6 times her size if not more.
People don't need animals if they can't even be bothered to research the dietary needs.