AI is created by humans to utilize other tools generally also created by humans. The end result may be something that was not fully created by humans, but that does not make that output invalid. The tech involved here is not all that different from past tech that we grew to accept. For example, a player piano does not involve a human playing the music, but we accept it. A recording of a score is considered an acceptable stand-in an orchestra at venues that cannot otherwise afford an orchestra. The difference now is that the output is randomly generated. Much of that will be lousy, but some of it might actually be of interest to some listeners. As long as the output is labeled as having been created by AI, it should be allowed on streaming platforms. To block it entirely is, in the end, just another form of censorship. We'd be blocking the output for the lazy reason that a human didn't put the notes together in the way this human-created tool did. You might just as well argue that machine-assembled products should not be made available in stores as a human didn't create them. I suspect you'd try to argue that the machines had to be programmed to perform these repetitive actions and that the product they are building was created by humans, but the same could be said for AI music. The AI had to be programmed to do it and the output, as a result, could only happen because of human design at the outset.