Completely agreed, the docs do nothing to address this requirement and it's been an issue for weeks already. In my mind this is actually a bug, given that it's not performing as designed according to the documentation made public to developers.
Here's the documentation on background location updates.
Documentation Link
markovidalis
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Gualtier, I'd appreciate your comment or suggestions on my reply to this post below. Thanks