I agree that a game's soundtrack isn't of the highest priorities to most, but lowest is really underselling it in my opinion

Folks who read game reviews, they tend to be more into videogames than your average person and are looking for different things when it comes to games. Plot isn't particularly important in most games, either, still it always gets mentioned in reviews because people do want to know about it. It's a reviewer's task to paint their audience as complete a picture of the game they can, and soundtrack is definitely part of that picture. In this case it's especially jarring as he does mention other aspects of the audio. A few sentences wouldn't have hurt anyone
Can't wait to hear the music for Mercs 2, by the way

Loved your score for the first one and soundtrack is one of the most important things to me when it comes to games.
edit: cant spel