WiFi-Aware (NAN)

Just read up on the new features on Android Oreo (next Android iteration) and one of those features is the following: It's called WiFi-Aware (Neighbor Awareness Networking A.K.A NAN). Here is a link to what it is: https://youtu.be/xwSYPqqhTsQ I can see some privacy concerns with this stuff. I was wondering what you all thought. V/R Umair