The question to be answered is when the rescue copter(s) arrived on the timeline of the video shot by the private passenger. The breathing gear on the divers looks a bit more sophisticated than one would expect on a Coast Guard team of rescue folks, IMHO.
Puentes’ video ended with the arrival of the helicopter. All of this video was taken before Fuddy even let go of Yamamoto’s hand.
The plane had sunk before the “official” rescuers arrived.
Any frogman appearing before sinking is ???