I RTFA. You are correct, it isn't misleading. But it is a fascinating article (non-nerds, don't bother, you won't understand it).
I read most of the article myself and avoided the original paper. It's was a little over my head making my best guess at a simplistic takeaway for the layman, like myself, appears to be: Electrons, under certain conditions, won't repel from one another as they normally do and instead pair off with each other to create superconducting properties. The authors feel they've developed an explanation that will allow one to predictably manipulate this property with better materials for future technologies. The challenge now is to confirm their explanation is correct by finding a way to apply their ideas. This is hopefully close enough; however,any improvements or clarifications on its accuracy is desired (and expected).
As for the title: Yes, I'm aware it obviously wasn't implying this would resolve the Grand Unified Theory of everything. However, during the first half a second on my first read, I did initially think it had something to do with that idea the phrase for G.U.T. is traditionally reserved for when it's discussed in articles related to science and technology. Then, much to my disappointment I realized my mistake; the writers were probably doing it to capture the reader by baiting the article with a little bit of sensationalism. It's called marketing and story tellers do it to "engage" the reader, which they have every right to do. I'll need to try a little harder at keeping my wishes in check to avoid that type of manipulation.