Both accounts mention the violence of the crash and the fact that the planes burned rather quickly. It seems to me that your only chance at having some survival gear in an instance like this is having it directly on your person. Also, it seems like a big mistake to leave the scene of a crash with out leaving some kind of sign indicating you’re at least alive. Piling up rocks or arranging some sticks in a meaningful way, or simply searching the pockets of your dead passengers for a notepad and pen.

My condolences to families of those who died.