Did you look at the video? It’s at the link
She fired three shots rapid fire then ducked behind the counter. She hit a moving target and kept firing till she felt the threat to her had changed. The perp was concerned with the husband who the perp felt was the bigger threat. Never underestimate a little old lady with a revolver.
I didn’t see the other two shots, so you are correct, and so was she. But indirectly it still justifies shooting multiple times. 3 shots, 1 hit, at very close range. And the perp was still able to return accurate fire. Deadly, except for luck.