Earlier quoted context omitted.
This is a matter of perspective. The mission is what you call it. Sure, it’s not a “rescue”, it’s just an “unplanned itinerary change to another vessel”. Also, they’re not “marooned”, they’re “getting an extended work opportunity”.
So if you ride a ferry on a regular basis (which I'm sure at least a handful of HN folks do) - if that ferry breaks down before the return trip, when you catch the next ferry is that a "rescue mission", or are you just catching the next ferry? Replace ferry with bus, car, taxi, airplane, your transportation mode of choice. Calling this a rescue is, to OPs point, just dramatizing the situation for clicks. In pretty mu…
I don't know why people want to quibble about usage that seems clear.