"I don't think I would have done that part if I were a supercriminal. In some sense, that part does need to be a prank, unless I'm missing something, because the way we felt on the plane had no way of influencing the rest of Civilization where the events were happening that the criminal planned to actually profit from."
"My guess is they had to do most of the work that would need to be involved, for other reasons, and then they saw the chance to pull a full-scale isekai prank, and took it. And the partner who fell in love with this idea, sold it to their other criminal partner by saying that they'd do all the extra work themselves; and furthermore arguing that, if the people on plane deduced exactly what was happening and why and had no distractors to make them want to put the whole confusion aside to focus on safety, they might pierce the plan."
"There were things we could have done to try to signal Civilization, like drilling a wire through to try to use the airplane's exterior shell as an antenna. We'd have been more likely to do those things, if we'd been sure that our comms had been cut by adversaries, and that there was a supercriminal plan to make a massive profit, and that this plan had a key turning point which was to cut our plane's comms with Civilization."
"At least, that's what one criminal partner said to the other one, and then they promised to do all the additional work associated with faking the isekai scenario themselves, and their criminal partner sighed and let them get away with it. Call it a 3:2 likelihood ratio that they were romantic partners and not just criminal partners, this is exactly the sort of thing that one partner lets another partner get away with because their anniversary is coming up."