Normally, I ignore such articles as in June we wrote a detailed guide called "How to turn off Cortana and stop personal data gathering in Windows 10".
That guide mostly applies to the current version of Cortana, but a lot of the privacy tips are relevant for the Windows 10 Anniversary Update.
Going even further, Mary Jo Foley reminds me that non-Home users also have Group Policy options available too to turn things off.
Now, having put all of that out there, we can talk about how disabling Cortana for personalized information tracking is not as easy as throwing an off switch.
Update 9.20 is heading full speed towards Common Test today.