The original authors have something. They don't have the expertise in condensed matter physics to really know what. They don't know how to report results and what results would be conclusive. Their work is simply not convincing, and if they were experts they would also not be convinced.
That's why they brought in another collaborator who is an expert. But because the paper was released early it's clearly a mess. You can see the big quality improvement though just between the two drafts.
