The issue of "control" is pretty peripheral to this conversation. TGIF was a fixture in the company culture and as such nobody really "controlled" it. It was just expected that it'd happen every week, you'd go grab a beer, and watch the execs answer the top voted Dory questions they'd rather avoid, at least from time to time. That was a crucial feedback mechanism which is now at least reduced if not gone entirely. This will make the system (Google) less stable.