You can use superconductors to create Josephson junctions, which can be used for standard logic operations (but also useful in quantum computers). These junctions are much more efficient and much faster than transistors.
This particular superconductor will not be useful for transmitting power because the effect breaks down at very low current limits in this material, but it will be very useful for studying superconductors.
So contrary to what you said, this will in fact not be useful for power transmission, but could be useful for CPUs and GPUs, and could lead to computers that are hundreds or thousands of times faster and more efficient than what we have today.
To be fair this material may never see a practical use though.
I was under the impression the major struggle to create a room temperature single electron transistor, were not so much the tunneling junctions, but the quantum dot size and placement, to avoid electrons passing through just because of their thermal energy.
How would this superconductor help in that case? (or am I missing something? this is kind of at the limit of my quantum computing knowledge)
