I applauded you SHELL MANAGMENT for your insight. It takes bold actions by leaders in industry to change the status quo, don't you agree.
Seeing as SHELL is such a bold leader and has the whole oil and gas industry under its wing, heck all aviation, why does SHELL not simply say that they will not use any vendor that that has any single engine aircraft in their fleet? Inaddition SHELL should lobby to pull all airworthiness certificates for single engine aircraft, because over land or sea, a single engine failure has a high probability of resulting in an accident. Further more, why not mandate that all helicopters have a redundant main transmission, tail rotor system and that all red falcons or birds in route be eradicated before flight.
You do not know the cause of this accident, please keep your musing to your self till the investigation is complete.