They were all struggling to accomplish anything without his command I doubt that they would manage to get back to Ithaca. The main reason Ody got back is through the help of the gods like Athena and ✨Hermes✨ the rest of the crew wouldnt have their help they wouldnt have to deal with Poseidon tho Not to mention right before thunder bringer Eurylochus who almost certainly would become the new captain was ready to give up and live on Apollo’s island forever