#Cricket had just killed a neigbour's chickens. That isn't just bad behaviour, its a point of no return.
To a dog, food comes in a bowl. Once a dog learns that all these other animals are actually FOOD ON LEGS, and its FUN, it can't unlearn it. No training will ever make that dog safe, and it might decide to see if that toddler tastes good too.
For farmers, its the owner's job to deal with this: you don't ask someone else to clean up your mess. That's what Noem did.