Back in the 1970s, my grad school advisor, whose PhD thesis was, at that time, the second most-widely cited paper on a particular aspect of fusion (tokamak blankets), said that one had to have 20-20 vision before we saw a viable fusion plant, by which he meant it would be the year 2020.
While I have not been following developments in fusion technology closely, I don’t think that we are any closer to solving the engineering problems now than we were then.
I don’t see how this design addresses some imposing engineering problems.
Ever since the 1950’s we’ve been 30 years away from practical fusion power...