Criminal charges seems extreme; but what bothers me is that she apparently had been letting the dogs run loose. Not very neighborly, and not good for her dogs either.
As she stated in the video, there's no leash law, and being out in the country, she figured the dogs wouldn't get into trouble--especially since together, they weigh less than an average cat.
Like it or not, this is how it goes in farm/rural (NOT suburb) country. Dogs do run loose. BUT, anyone who lets their dog run also knows that if said dog is caught/seen killing farm livestock, said dog WILL be "terminated with extreme prejudice", and more often than not, the dog owner will agree with the action. The criterion isn't "loose dog", but "killer dog". Dogs that leave livestock alone are themselves left alone. No harm, no foul.
And yes, farm folks do lose pets to traffic (a much more frequent occurrence than the above "termination").