> "TypeFox folks continue to impress, and I feel like this hints that there is collaboration between them and Theia folks."

There's already been collaboration for years? Mark Sujew (one of the article coauthors) is a pretty active contributor to Eclipse Theia AFAIK.

From https://github.com/msujew :

"I act as a project lead for the Langium and Theia projects at the Eclipse Foundation.

I work at TypeFox."