This prologue serves as an introduction to the crew of Alien: Covenant, and uses the modern day advantage of trans-media narratives, debuting a film on social media ahead of its full cinema "sequel", in order to establish characters before we meet them in the film and further their depth and development.
Having seen the film, it's hard to argue that this scene feels as though it is missing. The prologue expands the situation slightly, but not to a point where the film can't be understood without it, and exists instead as a fun little add-on. Having seen the film, though, I can't help but feel that the obvious focus on the familial aspect within the group is lost in the…