Looks like an esg play, in practice energy density matters a lot more, if you can’t beat regular rocket fuel, it’s pretty pointless
Go read the rest of the thread where they discuss the very technical reasons this is cool.
What kind of world do you live in where you equate ESG with being harmful? Sounds like "conservative uncle who doesn't know anything about the topic".
ESG in principle isn't harmful, but it does seem to attract grifters that game one or two of the E/S/G letters to make their firms appear more socially responsible:
https://www.bloomberg.com/opinion/articles/2023-07-12/it-s-easy-to-make-oil-companies-esg
https://www.offshore-technology.com/features/revealed-the-oil-gas-companies-leading-the-way-in-esg-2/
https://www.ey.com/en_us/oil-gas/what-if-oil-and-gas-operators-view-esg-as-a-catalyst-for-innovation