She re-entered the house with a firearm and shot at her husband. I can understand the court choosing to ignore the stand your ground case. Of course, like QueenofHearts said this is more damning on Zimmerman, than it is on this case. In this case it largely sounds like justice is following its winding and convoluted course.
Of note though as to why she didn't call 911 is because she had attempted to leave without her cellphone. She claims the reason she went back inside the house with the firearm was to retrieve her phone and then leave. If at least the part of her not having a phone on her is true, she would have been unable to call 911 regardless of her intent when re-entering the house.
Personally, I doubt things will turn out in her favour, but I think that is just my cynical and jaded views on justice coming through.