Correction: The first half of the video was a load of bovine excrement whose only bearing to the reality in-game is that it is technically true. It was done in engine, and as many game studios have demonstrated over the decades, there are quite a few tricks they can use to make an “in engine” video look much better than what you’ll see on your typical PC or game console.
I'll add some information to that. In that first part of the video what you see, is what CiG wants you to imagine what SC is. If you look closely, nothing moves like what's in game: characters, ships all move in a "normal" or quite realistic manner. While in game you are subject to the famous physics engine coded by CRoberts (or so he used to pretend) and of course ships do not move that way at all (more like a janky 3D shooter), and characters are closer to the Doom Guy than any kind of simulation.
So it's a machinima, not a video made with the actual in-game engine.
Also in that first half of the video many claims are made in the subtitle area that are actually not representative of any kind of in-game reality...