I suspect that the Captain in his irrational state of mind would have been unable to remember the emergency entry code.
Poor system knowledge as there is still a way to override this from the flight deck!
So the captain banged on the flight deck door demanding reentry and the copilot said "I'm sorry Dave, I can't do that".
Hahaha, brilliant!
Expect a knee jerk reaction from the FAA.
Test's for sanity may be next.
Yup, ICAO Sanity Level 6 in our future pilot licenses?
On a more serious note, is this an isolated case, or are we witnessing the limits of the envelop of how far you can push crews
on a long term basis in today's busy environment with outdated duty limitations?