The Age of the Customer is over
We are now in the Age of the Company, which decides what the customer wants and monetizes the customer's private details for maximum revenue.
It is insane to kill off an app that people actually like using. Of course, from Microsoft's point of view, it's obviously insane to keep updating an app that can - gasp - actually work with non-Microsoft platforms.
Get with the program, Microsoft. The future is about Cloud, not platform.