Their support for VSCode is pretty considerable and reached the point where I'm comfortable working on non-GUI applications in C# in it a while ago, and from a UI perspective prefer it to Visual Studio.
Maybe, but the discussion itself was about Microsoft's commitment to open-source. Open-sourcing VS Professional, traditionally (and still) an enterprise tool, would be a bridge too far. The commenter that started this debate called the article a straw man, which is ironic.