How to get around in coastal southern Chile now that the Navimag ferry is suspended?

In southern Chile, many communities are only accessible by sea. For example, according to the Wikipedia article on Villa Puerto Edén:

Owing to the large tidewater glaciers caused by the region’s super-high precipitation, it is only accessible by sea, on the Navimag ferry from Puerto Montt in the north, or Puerto Natales in the south.

However, the Navimag website has a comunicado oficial:

Me corresponde informarles que Navimag Ferries ha decidido redestinar el Ferry Evangelistas a un servicio de carga a contar del próximo mes de Septiembre. Por tal razón, se suspende el servicio de transporte de pasajeros en esta nave en la Ruta Fiordos (Puerto Natales – Puerto Montt ; – Puerto Montt – Puerto Natales).

Which basically means that the ferry is suspended. The aforementioned Wikipedia article does state that There is also a monthly boat from Caleta Tortel, but the source is offline (print book) I can't find details about this. The Spanish language article has no information about transportation. In conflict with Wikipedia, the Soviet Genshtab map (via topomapper.net) does show an airfield:

^{Screenshot from Genshtab-map around Villa Puerto Edén}.

How can one get around in coastal southern Chile now that the Navimag Ferries are suspended?