That's true, but only because there isn't a great story in UWP for underlying services.
Non-sandboxed applications and services are not a sustainable strategy anymore.
Non-sandboxed applications and services are not a sustainable strategy anymore.
WPF was XAML v1. Silverlight was XAML v2. UWP has XAML v3. Your skills are still applicable.
You can also now use it with both native C++ and C# thanks to WinRT.