Even if what you claim is true, "creating" something does not imply infinite "control" over something.
You might build a car, for instance, but that doesn't mean that you (if even anyone) will be the one guiding it in 1,000 years.
So unless factually demonstrated otherwise, streams can be considered to be unguided.
How would we demonstrate 'guidedness'? If a stream follows the shape of letter S or something else sort of 'intelligent', do we say it's guided?