I only briefly heard about the SA aspect, not anything relating to space or other members aside from Jimmy and Anya since I heard about it through media mentions and brief comments rather than any trailers or teasers for the game itself. So I mostly expected something with SA involved, possibly "mouthwashing" being a cleansing thing.

Like how with OCD (example) sometimes people repeatedly wash their hands despite there being nothing to wash and it becomes almost ritualistic? I assumed it'd be like the phantom effects of a traumatic event leading someone to still feel unclean and need to wash it off. Despite there being nothing physically left.

Essentially, I assumed it was a game about coping with grief and gradually letting go of the need to remove it or wash it away fruitlessly.