Fake. No one is that stressed out about yelling at their kids.

Honestly, this fits with a very certain kind of parenting that often goes hand in hand with being a handmaiden; the kind where parents are desperate to be their children's friends and view anything approaching discipline as abusive/"problematic" (I've literally seen this applied to using the word 'no' with kids). If this, it's possible this was the first time she'd ever yelled at him, and her handmaiden tendencies just won out over her chosen parenting style.