If you can do a fast opening switch then inductive storage becomes pretty attractive. However fast opening switches just don’t exist. Lots have tried. Diamond switches seems to hold some promise, but haven’t yet delivered. There are a number of reasons fast opening switches are much harder than fast closing switches. For example is it much easier to have a fast breakdown and a increases in charge carriers, but you can’t make a ionized gas recombine and stop conducting without reducing the current to near zero.
As for the kickstarter. Well it looks like rubbish. No details, and sounds like pie in the sky. Also it sounds like the person doesn’t know what they are doing. I got personally spammed about it.