ThePotatoKing
I think the tutorial is trying to make Seb accept that his friends are dead. And the only way to maybe get out of this loop is to re-live and accept the trauma. Since he is denying the death of his classmates, the tutorial is trying to make him mentally stronger. Most likely that after this, we might have another loop were he relives the trauma of his friend's death. Just some thoughts. Also, I really love the hidden story of what might have actually happened to his classmates.