I'm just SLF (and haven't read the reports) but "The pilots told investigators that they did not consider a go-around “as they were aware that the takeoff area of the Runway 13 was a mountainous area and might jeopardize the flight.”" seems to imply a runway that cannot be gone around from.
Should landing on such a runway ever be permissible in any circumstances or part of the world or has something been lost in translation here? Is it perhaps the case that what the pilots really meant was that they hadn't briefed the GA from R/W 13, which they knew to be tricky, and thus would rather land at any cost than fly off into the (to them) unknown?