After all we did to secure cockpit doors after 9/11, they blow open in a decompression?! I give it five years before some terrorists employ this method of getting cockpit access.
And this thing with the voice recorder getting written over keeps coming up. It’s such bullshit. Transmit the data. If you’re worried about inappropriate access, give a code that the airline and FAA have to concur to decrypt. Or extend the time.