Yes, and not only is it at the very least psychological abuse (and possibly physical abuse depending on how long the child is left outside without food/water intentionally). It's also highly irresponsible, I hope there are not pedos in her vicinity. God forbid the kid get snatched while she's being a dumb cunt and not knowing proper punishment and parenting techniques.
Reminds me of a story I saw the other day of a woman who punished her son by dehydrating him to death over the course of 5 days.