I agree, but in this example, the ability already exists in the app’s other iteration. Third-party apps are fine until they start to clutter or complicate One's workflow.
That's precisely what so annoying, it was there and they took it out. Now rather than simply add or make a change at the time, we must remember to use another mac or iCloud at a later time.
When I travel globally due to work, there are many countries that have no mobile internet, or we must pay an expensive rate. And if it doesn't work standalone then you are crippled.
I know we will probably not get it back by users wanting a feature (how dare we know what we want), I was curious to the apple logic in removing it (and messing up the operation)