You're looking at an audiobook as if it's only a method of distributing the contents of a book, but a human conveying a story is a performance. Those performances have artistic merit. Sometimes more, sometimes less, different take aways for different listeners, however it's an inherent symptom of a human being sharing something.

This is where it gets important to remember that Machine Learning isn't actually AI. It cannot make decisions or have accidents outside of mistakes made by the developers. It is not intelligent, it is a computer program.