Not sure where the official announcement of this happened, but videos and discussions of the game are now finally allowed. The game is still invite-only, but expect to start seeing it all over the place now. Popular streamers are already jumping into it.
From what I remember there was no NDA but no EULA either. It was a simple “please don’t share anything about this”, the journo ignored it and their account was banned. As far as I’m aware there’s no legal action going on, the Verge have just lost any goodwill they ever had with Valve.