It left 16 or 18 hours later! does that make him safe? or is a refusal the same as a car RBT?
A refusal is treated the same as a positive test. The piece by Geoffrey Thomas says:
"Passengers were provided hotel accommodation and rebooked on EK421 with a delay of 16 hours."
"Later that day a new crew operated the A380 registered A6-EUF, back to Dubai as flight EK 2669 with no passengers."