Those women were WARRIORS. They had a little trouble putting the guy down, but I’m not going to say I would have done any better.
They do get points for fighting...they kept coming at him...although “mom” backed off some at the end and that’s why the robber got her gun away from her, and she’s lucky he didn’t shoot her...he did try to shoot the daughter.
They were both under-gunned and that’s why he was able to keep fighting instead of being incapacitated. They needed something large enough to knock him down.