It wasn’t murder, because it wasn’t pre-meditated and she likely didn’t intend to kill when she did it. Manslaugher and assault seem the correct charges. I’m not making excuses for her, she deserves jail over this. But all those mitigating factors matter when you compare this case with murder cases that get 20+ years.
It must suck to be a judge, and have to decide that taking some lives are worth more or less than taking others.