There was an expert on TV today that showed what would happen if a cabin door flew off. He said the in rush of air would likely cause others holes. The air is -66 degrees and as it rushed in it would be a thick fog and the pilots wouldn’t have time to react. He said this would scenario would take about 6 seconds.
You need to find another TV station to watch.
Cabin doors can't do that due to the way they are built/shaped, the door comes inside to close and is smaller on the outside than the inside so it fits like a wedge in the fuselage and is locked in place not only by the latch mechanism but also by pressure inside the cabin.
Who ever that "expert" was ain't no exspurt on aircraft.
Plus the Pilot/Co-Pilot are in the Flight deck with another door separating them from the Main Cabin.