The rudder did not disbond, it came off. That's important.
The engine did not go into reverse. That was already identified. The nitwit "expert" who claimed that a sabateur could nip the hydraulic line to the reverser should be bound and gagged.
The CF6 does not use hydraulics to activate the reverser.
period
What are the odds of choking to death on your tooth brush in the morning? Multiply that number by about 6 giga zillion and that number reflects the odds of a tail coming apart.
587 managed to intersect a number of non related and normally insignifigant events that resulted in the departure of the vertical stabilizer.
The airplane, in my opinion, managed to bullseye the preceding airplanes wake turbulence not once, but twice.
While recovering from wake encounter number one, they hit number two.
With controls set to recover from a diversion in one direction and then encountering a diversion in the OPPOSITE direction, I am believing they found themselves outside of the envelope.
And that is where the tail went.
You may, of course, disagree.
PB