When you have studied airplane crashes for 15 years you can get an idea.
There is also physics and how an airplane responds.
Just like if I see a car crash and both cars are drivable... I know they didn't hit head on at 50MPH each.
When a plane breaks up at altitude there isn't much left when it lands. (TWA, Lockerbie)
Pieces are found 20 miles apart from each other, not 2 miles apart from each other.
When a plane hits the water or the ground going full speed, there isn't much left. (EgyptAir)
When a plane falls out of the sky at altitude and hits the water, there isn't much left. (AirFrance)
This has been proven by many crashes with full investigations.
The only water crashes I recall with pieces this big... were ditching style.
A couple were not intentional... they bumped the auto pilot and the plane crash landed in the water.
But they still came in as if they were landing, at the correct angle and all of that.
That is really the only logical explanation for this plane being so intact.
In my "I'm feeling more opinionated with this pregnancy" opinion. :twocents: