Definitely child abuse.
No doubt she had a hand in feeding him, but hardly an offense the law needs to be involved with. If you go down that road, any kid, found in any unsanctioned behavior, will lead to charges against parents. In the all too common problems of kids on drugs, pregnant or STD positive, shouldn’t the parents be dragged into a jail cell for enabling their little darlings by doing too much of the wrong things and too little of the right ones?