Copyright law is very clear that if a machine does it, the original copyright on the input is kept. This is why your distributed binaries are still copyrighted, because the machine transformed, very significantly, the source code into binary which maintains the copyright throughout.
It would be inconsistent for the courts to suddenly decide that "actually, this specific type of machine transformation is actually innovative."
I know this is generally really bad for the AI industry, so they just ignore it until a court tells them they can't anymore. And they might get away with it as I don't have faith that the courts will be consistent.