Listening to this again post-Dawntrail, last quarter or so really reminds me of the Skydeep Cenote theme. Obviously we have the Azys Lla motif in there too.
Every music piece from this game is as peak as the game it is... What an incredible soundtrack for a magnificent game. I would love if Division 3 would developed FF XVII or a spin-off with Barnabas from the past till days. When a game is so good that you would love to see more and more like if it was your own world...
There seems to be a discrepancy for the credits in the video description. The credits in other places state that it's arranged by Saya Yasaki, not Soken.