I suppose they do.

[In any case, he doesn't seem bothered by the humor. He rather likes the small quips Connor offers here and there.]

Mm. Not directly. There was one that drowned from the pool water when the gravity was turned off. Someone else died from a specific... event that happened to them. It was as if all of the air was sucked out of him and he suffocated, but it was not directly from the station's effects on the entire population.