As C++ is the native language for the UWP, surely it would map more neatly to the platform?
And the well-known performance and memory advantages, however small, are critical for mobile devices. I don't think Microsoft should commit long-term to C# on mobile just as both Apple and supposedly Google are migrating to Swift as the future of their platforms, for good reason.
The video segment in question starts at 8:40, though the entire video and its predecessor are well worth a watch.
Monty also tried making the argument against 24/192 music in written form in the past: https://web.archive.org/web/20130115154647/https://people.xi...