I forgot about this until just now reading your post but my dentist told me either his brother or one of his friends was on the recovery team that went down and got the bodies out of the plane. He said they were so covered in crabs that they had to blow off percussion grenades to get the crabs off the bodies and there wasn’t a whole lot left. It just made my stomach turn. So I can imagine that they were cremated.
All right, then there was compelling reason for cremation, here.
But there have been cases of fatal accidents followed by hasty cremations before autopsies could be performed, so ordered by powerful politicians.
I wouldn’t have wished such a fate on anyone but there sure were a whole lot of “I told you so”’s uttered in the wake of JFK Jr & the others’ deaths. I was a helicopter pilot in the Army; determining the cause of a fatal crash was the job of the investigation board. Second-guessing by fellow aviators was usually regarded as unseemly.