[fnordpiglet]

I’m not entirely sure that’s true. A posit in the paper is this is a novel super conducting mechanism and as such if the mechanism is true it’s totally unexplored. That leaves open a huge field of new research. That’s certainly a relevant part of the paper. Super conductivity at room temperature is an amazing breakthrough alone, but if it was with a clever tweak with an existing well established technique that would be the end of the story. The fact it’s an entirely new technique opens a world unexplored and indicates a pathway to even more amazing discoveries to be had (and funding for entire generations of physicists).

[glenstein]

Right. The mechanism itself seems extraordinary. And it seems like that mechanism is exactly the "why", the commenter is claiming is more important.

Moreover, you can have more than one thing about a paper be the "relevant" thing.