Nigel makes an interesting point:
In the Jet Blue case in 2012, the lock/security features help keep the mentally unwell pilot out of the cockpit. If the story on this GW A320 remains as it appears right now, it's the inverse of that event.
@ anengineer: I think we need to agree to disagree, as I don't see it through the same lens as you do. What you wrote there tells me that you don't (in a general sense) trust a given flight deck crew. If you don't think you can, then I suggest you arrange other means of transport. My grandfather never once set foot on an airplane. He would travel by train to visit us.
My grandmother would fly to see us. (1960's).