...the airline involved would be given an official warning...
Stop things from falling from your aircraft. You have been warned. Pay attention!
What on earth will such puerile action achieve? No operator wants anything to fall from their aircraft. To be told that something has fallen from your aircraft is worthwhile. But the above sounds like the precursor to punitive action - something that will persuade operators to deny all responsibility at all costs and start obliterating evidence.
PM