Without seeing pictures of the other passengers its difficult to tell
The big mystery to me is who are the other two passengers and why did they take off and /or refuse treatment ? Are they hiding? Why? Did anyone interview them or even get their names?
Seeing that we are mostly guessing here, I might suggest that there were two people who went along for the ride and didn’t pay...?
Might have been the son of the pilot as someone suggested, and perhaps Fuddy invited her sister?
Something so simple...and on a bad day, better to keep quiet about it. The investigators would certainly know.
Yes, it could be important, but then again, maybe not. It's likely the investigators know who they are, since we're dealing with small numbers here.
Another question: There are six people in the water visible on the post-crash image made by Mr. Puente. Counting the photographer-videographer, that makes seven accounted for at that time, moments after the crash. Where are the other two?