I don't think you got burnt, you just got what you paid for. Unlike most manufactures; Ford gives you
more than 1 option for a navigation system.
The less expensive "Connected Navigation" option only works with a paid subscription to connected services after the free 90 day trial. You must always maintain the subscription for navigation to work. I believe it's currently about $80 per year.
They also offer a more expensive navigation option, "Connected Built In Navigation" that comes with a 3 year trial of connected services but will still work in "offline navigation mode" after the subscription expires.