Interestingly, this whole technology might come to market more quickly than a nuclear reactor in an industrialized country could be build from decision to commercial operation.

At best, nuclear power is unwieldy, hard to calculate, needs a vast, highly specialized infrastructure and workforce and leaves you with radioactive waste with no solution realized as of yet. At worst, "impossible" accidents happen, people shoot at your reactor, nation states devolve and use the fuel for dirty bombs, somebody tries to blow the reactor up on purpose...

You hear about that tidal generator that blew up and contaminated 1000 Sq km of land? Ya, I didn't either.

Actually I have.

Just like we already had the “lightbulb” in the form of candles. There are significant downsides to nuclear reactors that other kinds of sustainable power might be able to address