Ergo, the manufacturers MUST design a mod which makes an unlatched cowl impossible to miss. Next time - and without some positive action there will be a next time - we could be looking at a hull loss with multiple fatalities.
Purely imaginary in all aspects.
Cowls have been unlatched and missed since the beginning of flight.
Anything in your own mind can lead to a hull loss and multiple fatalities (catastrophe by definition). The certification challenge seeks to minimize such occurrences by providing redundancies and multiple hoops (post work inspections) for such to happen. Just looking at the historical data since the beginning of the jet age confirms the inadequacies against such catastrophe.
However, such minimization by themselves need be tracked as this one has been. The rate of missed inspections was unacceptable, thus something needed to be done to minimize this rate. This investigation is a perfect vehicle to look at the post service bulletin inspection adequacy (nothing will ever be 100%)