It is sound design obviously, but it's interesting that they put that much energy into recreating the feeling of being there through the audio without music.
I feel there is a trend of these videos with just sound design or raw sound, rather than the usual epic music.
For example this famous recent action sport movie / advert has just the sound design, no music: https://www.youtube.com/watch?v=NHrwcQQ38bA
It is sound design obviously, but it's interesting that they put that much energy into recreating the feeling of being there through the audio without music.
I feel there is a trend of these videos with just sound design or raw sound, rather than the usual epic music.