Should be afraid.. If people are more convinced an AI is human than a human is human, that means AI will be more likely to convince you to adopt their 'point of view'.
To put it another way, if an AI and a human post two different views on a subject, people are more likely to be swayed by the AI's point of view.
So for much cheaper now organizations can use AI at scale to sway public opinion in a way thats more effective than ever before.
This is an interesting idea.
The next test should be that they have a debate with an AI or a human on different topics and see who can convince more often. If the AI turns out to be the more convincing debater than the human -- that does start to get into scary land.