Cultural Relativism doesn't justify any of the events in this story. Lina's life was damaged and irrevocably changed by an event outside of her understanding or awareness.
The ancient Greco-Romans practiced what is defined today as "pedophilia" and "pederasty." Young girls were married off at very young ages - 12 or younger. This last continued on Europe and the Americas until the early 19th century when girls still married older men at the ages of 12-14 years old. Our current morality evolved recently, 20th, and 21st centuries.
"What is more horrifying is that this is still happening to this day," is the most important sentence of the article.
It takes little effort to find Human Sex-Trafficking stories in the news. Humanity is obviously still challenged by its own sexuality and sexual-lifestyle preferences.
Thank you for the history lesson, Andrei.