Win32 support is the only thing people buy Windows for and Win32 apps are the only Windows apps worth writing. If you are starting fresh as a user, you have a choice of Android, Linux or some Apple-y offering, depending on your tastes and budget. If you are starting fresh as a developer, you'll target a platform like Android or "the web", both to target those fresh users and because the Google or Apple app stores are widely used and convenient for startups.
Tying Fluent to UWP pretty much ensures zero adoption, but apparently MS have copied Apple's Reality Distortion Field and so their execs can no longer see this.
Biting the hand that feeds IT
