Millions of people have “become an astronaut” as their childhood dream. Less than one in a thousand people who apply to astronaut selection actually become astronauts. And then they have to wait years to actually go to space. I don’t know why anybody would go through all of that if they didn’t really want to go to space. And while everyone else is either getting full ISS rotations or planned to fly to the moon, Butch and Suni have been assigned to an eight day test flight that’s been repeatedly delayed for years. It’s arguably the worst assignment you can get these days other than no assignment at all (and to be fair, it’s also not the first assignment for either of them). I’m sure they would have preferred if their six month stay on the ISS was planned as such ahead of time, but spending six months on the ISS is the normal mission that everyone else gets anyway—and it’s not like a normal ISS flight is scheduled for the personal convenience of the astronauts assigned to it, either.

Yeah, they don’t have a choice now that they’re in space, but if you’re an astronaut you can also just retire and make a lot more money in the private sector if you don’t really want to go to space again, and I think that it’s a pretty slim chance that a veteran astronaut would stick around and devote years of their career to an eight day flight test but would be really unhappy about being “stuck” on ISS for an otherwise normal rotation period.