I somehow think it is German emigrants who drove the VFR market strongly enough in the past to warrant service. The ones I know have a very strong attachment to their homeland, retaining language and citizenship through 2,3 or even more locally-born generations (more strongly in some countries than others - Argentina being a particular example where there are dozens of schools certified by the German education ministry and people send their children to Germany for tertiary education). The younger ones are less attached so unless there is a strong trade connection, these routes wither. Since airlines alliances make it easy to get around - BOG is Avianca's hub, and before Varig's demise, GRU was probably a more important (than it is today w/o a local partner hub) LH destination - no need to continue service to marginal destinations. That said, I am surprised SCL is no longer a LH destination as it is commercially important.

I have a friend whose grandfather was a young German merchant sailor and whose ship was interned in Callao (Peru) during WW-I. He jumped ship, started up a new life and never went home even though (or because) all his male siblings were killed in the war - certainly remembered his family as his children were named after them. It became up to his adult grandchildren to get in touch with family in Germany.

As for 5th freedoms, one North American airline (leave the name unmentioned lest it becomes a quiz item) used to have a flight to LIM- SCL-EZE, coming back the same way, in the '80s. Not much of a VFR market - though there were a lot of exiles from one of the stops so it had to be trade (mining?)