They are a company and they are still good. They changed their licensing model for v4 onwards. I have been using it for most of my note keeping and lite code editing tasks and its excellent as always. I think they can still get back to the old hype if they choose to use typescript for their plugin system. A lot of vscode plugins can be ported that way I hope
I doubt they'd want to create a schism and add a JS engine on top of the existing stuff. That said, Atom and VS Code's plugins being JS based was a huge benefit for them as at the time millions of developers started their career with or switched to using JS and web technology for their day job with webapps and nodejs.