He said that Jan left the core team which i believe is a correct statement. He is still with Shift but not on the core dev team anymore.

That said i have a different take on the news letter. If they are willing to let Jan go due to lack of focus on shift then the rest of the Devs had the confidence in their own skills to do so. He is still available for assistance if needed.

That said they are also in the process of hiring two new developers.