I like books like this that give an insight in what goes on in National Parks and humans limitations.
This said, what bugged me was the fact when an outsider, as for example a tourist died in the park is was them being ignorant or stupid or not having common sense according to the author. However, if a park ranger or park employee died in Yellowstone it was due to weather or being a freak accident. So very one sided. In the end they all lacked common sense. Employees or not.
No matter how people died in the end, it is sad but much can be learned from each one.