[TeMPOraL]

> Is cruise line A rescuing the passengers from cruise line B? I'd say yes.

IMO that's only true in line A's PR campaign, assuming they're adversarial enough to run with it.

In your analogy, the passengers are always "stuck on the island with no immediate way to get off" for at least 5 days, as they have no alternative way to get back during their planned stay. If B's cruise ship breaks down - and AFAIK in this case, "breaks down" doesn't mean the ship can't move, just that the risk of catastrophic failure during the trip crossed a preset threshold - that's more of an operational disruption. The stranded passengers are still safe and sound, they just need to wait for the next scheduled cruise to take them home.

The schedule bit matters IMO. It would be a rescue if the next scheduled ride would be way too late to help them and thus it had to be moved up to save their lives.