You have a mistaken perspective on the whole thing. These men were seafaring adventurers, not people who will call their lawyer if there isn't a gluten free opt

You have a mistaken perspective on the whole thing. These men were seafaring adventurers, not people who will call their lawyer if there isn't a gluten free option in their restaurant. Every crew member was fully informed that they were more likely to die than survive the journey – before even sending in their applications. And Shackleton is dead since long, so you can't cancel him anymore.