The bafflement is apparent in the headline already:
An international charity had put Hannah Beech, author of the referenced NY Times article, in contact with minors who had arrived at a refugee camp in Bangladesh without family members. There, she had spoken to many young girls and boys and if possible, to their relatives. After a couple of days, she realized that she had not always been presented with the truth. The uncle of three orphaned kids turned out to be their very much alive father, the girls’ mother still being in Myanmar.