Yes. To elaborate better, I would imagine most of the people involved probably want to be able to work in the industry again (or are still working in the industry) and are not independently wealthy and are keeping mum about the details they know. At least back then Blizzard the company was pretty secretive and we had to get approval for any media contact - it's probably like any larger organization, everything you see in the media is already pretty curated. The GDC presentation Dave Brevik tells about the Diablo 1 development process is extremely consistent and he's an excellent story teller - I heard almost the exact same thing in abbreviated form during my lunch interview more than 10 years before that and at some other candidates lunch interview when I went to that candidate's lunch as the interviewer.