Proooobably moreso a response to the Twitter drama from a few days ago where people were claiming that Facebook was moving away from RN... especially considering the author was in that thread.
A little sad, if it deemphasizes .net. I hope the Core transition doesn't turn into a boondoggle, though I'm afraid; it's taking a long time to reach parity with where the full framework was. The history of major language rewrites is not overly encouraging.
Working in C# on .net 4.5-4.7 is such a tremendously productive platform.
BUILD 2018 was full of .NET goodies, including .NET Core 3.0 roadmap with Forms/WPF/UWP/XAMLDirect support as the main goal.
It appears it is the usual political issues between Microsoft divisions, which I thought had gotten better after all the re-organizations that took place.
I wouldn't be surprised if this JavaScript everywhere wasn't yet another way Microsoft is trying to appear cool among the Google devotees crowd, like how they are jumping in PWAs as well.
That's a ridiculous thing to say considering 50% of dev's are writing on Microsoft stacks and the company pulls in over 20 billion in actual profit each year.