"Stole" - I don't believe that word means what he thinks it means. Perhaps I pre-maturely anthropomorphize AI -- yet when I read a novel, such as The Sorcerer's Stone, I am not guilty of stealing Rowling's work, even if I didn't purchase the book but instead found it and read it in a friend's bathroom. Now if I were to take the specific plot and characters of that story and write a screenplay or novel directly based on it, and, explicitly, attempt to sell this work, perhaps the verb chosen here would be appropriate.