Aargh. For a while I maintained an app which embedded IE (technically "IHTMLDocument2") on Windows CE, which meant dealing with a lot of this madness. It spawned all kinds of background threads and didn't take kindly to being interrupted, and control over it was limited - ended up drawing a window over its control bar and passing clicks through ourselves.
He mentions "the cultural defeat of Microsoft", which is absolutely right; developers no longer choose the Windows platform, they are only ever forced to by circumstance, and have developed tools like Electron which allow them to ignore the platform entirely.
For whatever reason, the "developer community" of Microsoft was very weak, at least post-dotcom era. You couldn't find many people talking about it openly to learn from. And only recently have they responded to that, especially with Roslyn and the buyout of Github.