You don't see the point in being able to develop microservices, databases, web apps, development tools, mobile apps, messaging services, embedded systems, middleware and tons more types of non-desktop GUI apps?
I agree that there's a point to console applications which can be compiled to different platforms. But that's a basic feature of countless languages... c++, python, ruby, javascript, rust, go... They all can run console applications on different platforms.
What I don't understand, is why they didn't focus on the a cross-platform version of Windows forms or XAML. The only cross-platform competitors in this market are QT and Electron. This would also promote people to develop for windows on other systems like Mac and Linux...