I can't read all of the article because paywall, but H2 is a very very bad solution for heating and transport, but could have applications elsewhere.

Paul Martin is very good on this subject. Check out https://www.linkedin.com/pulse/distilled-thoughts-hydrogen-p... and the associated artcles (paticularly on heating).

Sadly it's likely the Economist Journos have been captured for a nice long lunch by the 'big oil' proponents of blue hydrogen as a "transitional" technology (which, not co-incidentally, keeps them in business and doesn't turn all their pipelines into stranded assets).