Razark, play with fire and mean harm to another being - and accept the risk to get your fingers burnt.
The man tried to rob her. He was the attacker, she was the intended victim. That she was powerful enough to refuse her role and turn the situation against him, would not have played any role -
if he would not have decided first to rob her.
There are worse things that could have happened to the guy. For example going into a Russian prison for one or two years and getting used by male inmates who do not need to consume Viagra at all to become entertained by him for slightly longer than just three days.
Get my point, yes?
The guy was a robber, and he planned to use his assumed superiority against an assumed weak girl. He got spanked, but will survive it. As far as I'm concerned, close the file, the two involved subjects are straight with each other, save the tax money and avoid court proceedings. Maybe this experience will motivate him never to try to rob a woman again. If so, he indeed would have learned a precious lesson.
BTW, there are countries in the Western world where the woman would have had the right
to shoot him to death in self-defence. Or more generally said: where the shop owner, independent of his gender, would have had the right to shoot to death the attacker, independent of his gender.
Don't want to get harmed while attacking somebody else for no good purpose? Then don't attack somebody else. That's what it comes down to for me - after having been the target of intended street robbery myself three times and having driven them away every time, and having been attacked by a junkey with a knife and seriously injuring him and taking him out of action rather hard after he cut me.