If their base is node, that implies we could start to see many electron.js app being ported to the browser
EDIT: Upon closer inspection, it looks like this is an online IDE meant to mimic a desktop environment. I don't know if there's any demand for that, but sure, why not. I'm sure someone will come up w/ a reason to run WebAssembly in a jQuery plugin, too.
Or a desktop-only Electron App would be usable from a mobile phone browser etc.