criso
Coming over here & taking your jobs since 1900
It's pretty obvious that with those injures, she won't be able to work for a long time and is entitled some sort of insurance pay out to live / get treatment. It's not so much about who was to blame (it does seem to be a horrible accident) but whether she was a self-employed freelance groom or employed by the owner so should the payment come from her personal injury insurance (if she has it) or his employer's liability insurance. It's probably the insurance companies pushing it to court rather than the people involved.
According to the article she was employed but her employer is arguing she took the horse hunting in her own time not as part of her job. She says she was asked to get the horse ready for the season for his son to ride so was part of her duties.