...No. The twins had to come to the surface because they couldn't sustain the atmosphere. Otherwise, it would be really fucking helpful to have two people to be able to do EVA and repairs and things the automated systems can't do. That, combined with the fact that she wanted to give the Captain back-up. But the primary reason was that they couldn't stay up there. No one that is breathing could long-term.you forgetting that iris already restored ship atmosphere or twins would just die there.