Earlier quoted context omitted.
So, an employee was doubling as a full time care giver for his children while remote working? That sounds like exactly the kind of practice that gives remote work policies a bad name in the first place. If I found out one of my employees was taking care of his kids while working at home, you better believe it would result in a conversation and a possible revocation of his use of the remote work policy.
I'd love to hear the explanation for how checking up on a toddler every so often is akin to him grossly neglecting his job.
If we generalize that to "what is wrong with frequent distractions" - open plan offices would fall into that category. For an answer, I would direct you to read any one of the many well-articulated anti-Open-plan rants on HN. Toddler care has all the downsides of an open plan office without the (possible) upside of increased team-productivity.