To be fair, those are app choices to require 'Always' for location tracking. You can most definitely restrict an app to use location only while using - you can't fault Apple or IOS for apps that (unnecessarily [1]) demand more.

One thing I really like about IOS is the reminder that an app has been using your location in the background for a while [2]

[1] http://www.theverge.com/2016/11/30/13763714/uber-location-da... [2] https://support.apple.com/library/content/dam/edam/applecare...