It seems unlikely to me that their public statements about their situation are a full and accurate reflection of their feelings. I mean, what else are they going to say? "Fuck Boeing, fuck this failed mission, we're pilots with families and it's less than ideal that we'll be stranded up here for 8 months doing busywork while our bone density gets nuked"?

If my employer sent me to a remote island without any of my personal effects, on a vehicle that couldn't safely return me home, I'd look at any list of tasks they sent me with some measure of bitterness. Even if it was my favourite remote island. Being trapped there would change the colour of things. Working is probably the only thing they can do to keep from going insane.