I understand that.
However, it must be said, there have been thousands of occasions where others on the scene, witnesses etc, have saved many lives, in auto collisions, aircraft crashes, ran into structure fires in an effort to rescue etc. Many times these non paid, non-official rescuers have forced doors open, broke windows, picked vehicles up off victims, stopped bleeding, transported victims etc etc.
I have been on scenes where family members have been allowed in past the tape, if you will, and many times the victims were children.
Based on the article, it seems this possibly could have been handled a little better. But then again, the wreckage of both vehicles could have been sitting in a pool of fuel.
Not a good scene regardless. Life can really suck at times.
I have been the responder (IIRC, you are/were a Police Officer and have as well). I have also been the one who has been required to keep loved ones at a safe distance while others are racing that short clock to save a life. It is not a fun job.
I'll reserve judgement unless I know much more than is stated in this very brief article.