It sort of isn't though. You put it there and you don't take it away. You don't put anything else in there to load it. It stops loading entirely if you take out the ethernet cable. That kind of seems like it's loading from the internet every single time. The setup function doesn't add anything to load it without the init script running. That's kind of weird, to me at least.
Oh, I didn't mean to imply it was a good way of doing things, just that the intent was to auto-update. Regardless of how the auto-update works, if a program like this is auto-updating then you're giving arbitrary execution permission to the project.