I liked the GDC video in the way in that they showed us the process of how the GDC created the game. But I would not have showed it before the game and animation were released. For me it ruined the actual field reveal as I had seen and decent field in the video. Yes, they showed you the field a few seconds later, but in my mind I would have shown the video as teams were looking at the field and such. It kinda made the reveal less surprising in my mind!
