I recall reading that NTSB analysis could not be cited in a court case.[...]
The idea is weird, though, considering that part of the NTSB's mandate is
to determine an accident's cause.

It removes a source of pressure on the NTSB to alter their findings.

Jose
--
"There are 3 secrets to the perfect landing. Unfortunately, nobody knows
what they are." - (mike).
for Email, make the obvious change in the address.