After 30 to 45 minutes, that girl was probably very tired, and possibly suffering from hypothermia. The guide was right to save her, or at least prevent her from washing further downstream.
Daughter was rafting on the Arkansas River this past weekend. They were told the water was 50 degrees.
Hopefully the girl had a wet suit but the guide is a hero.
The parents ought to make a very big public stink about the ‘rules’ baloney.