So what caused the breakup?
crude example- at 60 mph, put your hand out the window. face palm down like an airplane wing. Now twist palm 90 degrees so palm faces forward.
feel the difference ? Now multiply that force by 8 to 10 and thats for a small area of say 25 square inches. Now multiply that by say 800 for a approx body diameter closed tube into the ' wind "
In addition, plane losing control may dive or nose up or twist or turn
Forces above 3 to 4 g would exceed max design overload - ultimate - in a few seconds or less.