Every design I've seen of the hyperloop had people seated with no provision for facilities. I am assuming there are engineering reasons for it otherwise it logically would've been included.

And of course it is different from a bus. If a women is pregnant or violently ill on a bus you can stop at any time. And in fact every Greyhound bus I've been on will stop at various gas stations for toilet/food/drink breaks.

It's worth mentioning because what good is the technology of hyperloop if the economics fail (because no one will use it).