If you are an EMT, a MFR, or a Paramedic, doing nothing may very well get you into more trouble depending on the laws in your area/state. Many states have a "duty to act" statute.

The case in question didn't involve a "first responder", it involved a passenger in a car that was following the car that crashed who apparently acted negligently. It also involved alcohol use by both the driver of the crashed car as well as the alleged rescuer.

Anyone in the EMS field is or should be aware that any action they take or don't take for that matter, is subject to review and action by a court at a later time, I know I was made very aware of that when I was in EMT school.

And lastly, you certainly are entitled to your opinion but when you write "regardless of the fire that didn't exist..." you're omitting one of the major factors in this particular case, the person in question made the claim of an imminent fire to justify her negligent act, if I or anyone else did that, I'd expect to be found liable for any negligence on my part. Lying about why she did what she did is what the court looked at. You can't simply ignore that fact, well I guess you can if you want but it seems kinda strange to do so.