Think with your mind, not your wallet
If this mother had just looked online, she could have got at least two plushies with the same amount of money and free shipping.
If she remembered the age of her kid, she could have just cloned her car keys for a few bucks and give them to the little tyke, for some reason babies love car keys.
And she could have never come back and avoid wasting the extra money after she got the plushy.
Lawsuits cost time and money, and the time you don't expend with your kids never comes back.
Years from now, the kid will be like five and the lawsuit might still be going.
Oh and if she had ever watched cartoons, she would have know in advanced that these things are evidently rigged.
And whatever happened to those machines with gumballs and or small toys inside transparent pokeballs? At least you always got something when you put money on them.