He claims the whole ETOPS system is simply based on probability, and that one day, a twin engine aircraft will end up in the drink.
His logic is sound. It’s just that his perception of the consequences means that he vastly over-estimates the probabilities of a ditching caused by loss of both engines. The give-away would be if he’s prepared to drive a car on the highway.
A four-engined jet could end up in the drink one day, too. B747 + Mount Pinatubo = quadruple engine failure.