Damn, I had no idea this got changed. I loved the music in that final scene- it really captured the trauma of the moment, on top of the atmosphere of the location and everything that just happened. It felt like a perfect climatic song that captured all of the complicated emotions of finally killing his tormentor, and being a free person.
I'm disappointed that my friends who just got the game won't be able to hear the same song, which was only ever used in that scene, when they finally reach the Cazador boss fight.