Brooks did say that pulling people in could kill them. He's kinda avoiding that and the fact that the area is littered with temporal debris doesn't help his anxiety.
@Burning Kittyoh yeah, that reminds me. We're still kind of stuck in subspace. So either Tatiana wasn't there when Chrys pulled everyone in, keeping her from seeing the events gone down in said subspace, or she is still there with them, and cannot leave until Chrys lets them out.