He's surely 100% Chile's and the authorities responsibility right now, no?
So if i'm Juve, I don't bother causing unnecessary shit because the Chilean authorities and then the National team are the ones to do something about this, in that order.
Say nothing, do nothing. Leave it to the ones more connected to the incident.
Stupid thing to do, but dragging it up again and fining him or worse would be stupid by us. Best striker's fucking off, and we don't want another key player to be unhappy.