That's what I thought she was doing. She went after the dog, the cat went with her and the boy got on his feet and followed right behind. I'm impressed with all three of them. Especially after seeing the little guy's injuries. Tight family unit!
Things worked out reasonably well, although the mother might not have been bitten if she had stayed with the child.
Dogs are pack animals. Things could have worked out badly if the mother left the child to confront dog #1, and dog #2 then attacked an already injured kid.