I guess you could say that even if it has low electric and magnetic capacity it still will have a giant impact on industry. But not all industries.

1. The original finding was written by experienced chemists, not physicists. There are some problems where solutions are searched for in the wrong directions.
2. Our current generation of YCBO-based high-temperature superconductors started out as low-field, low-current, highly strain-sensitive, and over 30+ years of engineering development, these now carry >1000 amps/mm^2 in fields as high as 10T (although these numbers trade off against each other). It's a matter of time.