That's a tough question, and now I'm not so sure I can defend my opinion. It just comes from the fact that (today) the output will not be as good as a human writer. It's disingenuous to pass off a low quality product as a higher quality product, when it will take my time and attention reading it to differentiate them based on quality. Think of it in terms of branding and counterfeiting.

Later, after general AI, I will argue the opposite, that human-written articles should be labeled as such so I don't waste my time on them. ;)