I am very sorry to hear of the young Scout's tragic death. It sounds like such a freak accident and given that the violent thunderstorm occurred miles away in the mountains in the middle of the night, no one is to blame.
I attended Philmont in 1950, along with my older brother. Believe me, things were much more primitive there then, than today. I do remember that with distant mountains, a rain storm there might never have been known to us.... until the small creeks suddenly rose dangerously.
My condolences to the Scout's family.
L.W. (Eagle Scout, 1952.)