So basically, a AA studio, combined with a publisher that is still currently being sued by Nintendo, managed to make a game that Ubisoft spent half a billion dollars and a decade to fail at making.
In other news:
The soundtrack itself doesn't have any credits listed. On their soundtrack store page on Steam, it says "Kraken Express" (the development company) is the artist, composer, and label, with an "other credits" featuring Seán Dagher.