The important thing is that a device could be that temperature in a regular room without insulation or really particularly special components. Yeah its above room temperature but so is my desktop processor.
No need for name calling. I have a masters in mechanical engineering and am working on a cryogenic space radiator for work. Its being pretty semantic to say "well ac-tually 127C is way above room temperature, so this article is invalid and the breakthrough is irrelevant." My point is that a significantly smaller system can be produced to run at 127C that's normal industrial equipment and some hotter electrical equipment levels that doesn't require a large power helium cryocooler system to run continuously, like many devices that use superconductors today need.