Theory: having less privacy makes things easier for accident investigators, post-mortem.
Reality: In this case, the pilots did their job and got the plane down safely despite rapid depressurization and literally having their headsets sucked off of their heads. It is extremely unlikely to be pilot-error that a door-plug ripped off the airframe at 16,000' or that investigators would learn anything significant from the process in the flight-deck before or after the incident. At least nothing that would root-cause this incident.