I think in the original analogy, the actual robbery is just used as an event which may occur without our knowledge. Your analogy is better, the mapping makes more sense.
Something like: The locksmith has made a copy of your keys without notifying you. They could hypothetically use those keys to enable a robbery, but you won't know definitively either way until you find something stolen. But it is a pretty weird thing for them to do, right?
It's like saying I haven't been robbed until I discover that my stuff is missing.