No, the argument is that if this is true and it can be commercialized cost effectively that there may be an energy storage solution just over the horizon that would allow for all kinds of things that are currently impossible, such as summer/winter energy storage and other very nice to haves. It is obviously much too early to say anything about this so think of it as hope rather than anything more solid but it isn't necessarily about cheaper energy, just an almost perfect companion to cheap renewables whose main issue is that it is hard to store their output for the time when you need it most.
It may also make the energy (and economic) costs of fusion make a lot more sense, since superconductors are used to contain the plasma in fusion reactors.
