It does sound promising but workable fusion has been anywhere from 5
to 30 years away for a long time.
That is the way I see it. We are damned good at an uncontrolled fusion
reaction tho.
We understand how to start them up. We just don't know how to do it in
a bottle. The problems make disposing of some spent fuel rods seem
trivial compared to fusion without blowing up the city if the plasma
gets away from you.
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There's always a risk with things that are not well understood, but
everything we know at present says that the plasma will die if it is
not magnetically confined.