In the spirit of information sharing, if you get an "official" answer from the SteerCo whatsapp group, please share here.

Yesterday I asked: "I have a guest asking “What happens if they experience a flight delay during travel and arrive 4 days after their COVID test”?"

Answer: "The health authorities will be reasonable and understand circumstances beyond their control. They have taken these risk factors into consideration with testing on arrival and after 4 full days."