That would make their process suitable for countries that barely produce any iron to begin with. Unlike countries actually responsible for a big chunk of the world's iron production¹, and heavily reliant on fossil fuels; such as China, Japan, India, Russia.
>Also you should compare the natural gas hydrogen process to the currently used coke process.
No, I shouldn't. For three reasons: a) everybody knows that the "traditional" coke process is nasty, and is looking for alternatives; b) other alternatives already exist, as syngas-based³; and 3) the resulting iron is slightly different in properties.
Could the method from the link become more attractive in the future? Sure. Even then I strongly suggest everyone to hold their horses before going "WOOO THAT BIZNIZ SAID THAT THEY'RE CHANGING THE WORLD!!1". There's no "exciting" development yet.
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1. Source: https://en.wikipedia.org/wiki/Iron#Industrial_production
2. Refer to https://ourworldindata.org/grapher/exports/share-electricity...
3. Note that syngas still uses coke, but as a DRI method it uses it more efficiently.