I really don't see why no one should judge the parents. Doctors especially. I think it's perfectly understandable that some people judge why you'd leave three toddlers in a room alone for long period of time including leaving the premises in a foreign country.
Reading between the lines, I think the decision was made by one of them, and the other parent was never wholly in agreement with it. It’s a miracle they’re still married in those circumstances, but one of them is clearly very forgiving.
For that reason alone, in case I’m right, I will not add to the more cautious parent’s distress by endlessly rehashing the decision.