It's similar to your car breaking down in a remote area only if you've trained extensively for that area (almost your entire life), have food and supplies for the entire duration, have friends and entertainment, and can do your job as well as novel career options the entire time as well.

It's overly dramatic to call it a rescue mission. It just is. It's not great that they're up there longer than planned, but they're not going to explode or fly off into space.