This story is a major scoop for Bloomberg. The geo-political significance has yet to fully play out. One question I have is who benefits from the story having been leaked. In any case, it constitutes a technological tour de force and probably a case of strategic surprise.
This brings up the larger question of how society will respond to the Makerization of Brain-Machine interfaces. Looking for analogies, the availability of consumer genomics seems to be going pretty well–although what happens when garage-lab DYI-types start trying to produce their own GM-crops remains to be seen!