You really should refrain from calling him a crackpot and I don't think cold fusion at this point is a useful term because even if you entertain the original Pons-Fleischmann results as having any validity the alleged mechanisms behind them are very different than the H(0) discussed in this paper. You are correct that what he is describing would lead to table top fusion if true and the same author actually published a peer reviewed paper in 2015 claiming to have achieved net fusion. It's surprising that I had never heard of it until now.
https://aip.scitation.org/doi/10.1063/1.4928572

I agree that it's odd nobody else is working on replicating this researchers results that I can find. I'm not sure how to explain that, but until somebody attempts and get's a null result I think we should refrain from calling him a crackpot. It looks like he is still holding his position at his University and publishing papers. I even found an old news article about his 2015 paper where the University stands by the results. It's interesting, but yes we should be skeptical.

https://www.google.com/url?q=https://web.archive.org/web/20151016203132/https://www.gu.se/english/about_the_university/news-calendar/News_detail//small-scale-nuclear-fusion-may-be-a-new-energy-source.cid1323710&sa=D&source=docs&ust=1672450495019957&usg=AOvVaw1SKJUPL-pttIzlYgS7zQRa