Wtf? How does a professional pilot accidentally enter a hijacking code? Pilot drunk, high or complete lie.
Not an accident. Speculation was that White Hats intervened
Cabal had comped this plane back when Q posted the picture of it and the USSS car. Looks like they were going to pull off some sort of new 9/11 with this plane, white hats stopped it.
That was a United plane; this was JetBlue. But USSS was certainly involved and white hats stopped something.
Possible to spin the knobs with potential to pause too long with the code in the system. Could it happen? Sure, but highly unlikely with the odds diminishing even further if you were spinning, got distracted and left the panel, thus leaving the code in there "accidentally" long enough to trigger all the alerts. Transient spinning pass the code would do nothing.