You were right.All footage thats native to the gamespot material is so far only in those videos. No other sources or higher quality examples as far as I know.
However, I suspect Gamespot will just release their full uncut gameplay recordings next week when youtubers can also post 45mins each of gameplay, and then you'll have it all in one place.
Here it is:
https://www.youtube.com/watch?v=fWGMUBHzPLU