Oddly enough, it was the boost run @ 1:47 that made me smile. Regarding the outside areas, that pleases me as well.
For the most part, it looks as if Samus is still going solo in most of those videos. I wonder if parts of the demo where Adam issues commands to the player is basically a tutorial to introduce Samus' abilities, rather than being a constant mechanic implemented throughout the game, as some were postulating.