I hope we still aren’t using ice in rugby - that myth is busted. The inflammation is part of the healing process - restricting it increases the recovery time.As long as there's no concern about clotting, it's a perfect opportunity to help with recovery If you put him in business class.
Elevation and immobislation is perfect for serious injury. Keep it iced and pain managed.
Any discomfort is short term and you would imagine preferable than being stuck in a hotel/hospital by yourself + a support person rather than being at home around family.