Training on the B757 now requires verification of speed brake position with GPWS warning go around. It is not automatic. Cali was an example of how this might have saved them, maybe not, it would have been close. The main problem there was navigation and too much raw data and not enough map data that would have showed their error of turning into the mountains. I flew into Cali a lot and it isn't that challengeing. They were just trying to land straight in and not do the ILS approach from the other side. Botota happened to have the same FAF designator as Cali, unfortunately when they headed for it it was on the other side of the mountain. Sorry, drifting away from this thread just trying to answer a question.