It is clear that it is satire, but it does not really work because it asks the wrong question. When you ask the right question (about travelling in an airplane, not jumping out of one) the fact that commercial aviation is conducted without parachutes (though with seat restraints) makes sense.
Surely this work's result is indicative for commercial air travel. The vast, vast majority of passengers will leave the aeroplane when it is stationary and they will drop far less than half a meter when disembarking, circumstances in which the parachute was ineffective. So that's not the wrong question at all.
The ideal satire ought to bring up what we should do, ridiculing it. For example, the famous "A Modest Proposal" says that we shouldn't consider taxing the wealthy, particularly the people who make most money from Ireland while not even living there. It insists you couldn't even begin to tackle the problem with taxation or other measures, whereas eating babies would solve the problem entirely.
