"most economical" is not just some minor feature. If you were to switch to another means of producing hydrogen the price of the process would rise dramatically. The only non-fossil fuel hydrogen generation process is water electrolysis (well and biomass, but guess what's involved in efficiently producing large quantities of biomass).
If you currently eliminated fossil fuels from the process the price required to maintain our current food levels would escalate dramatically. In practice this would mean likely that both food production will drop and food prices would rise.
I don't think it's disingenuous. Maybe I should add "affordable" as a prefix to nitrogen fixation, but "less economic" fertilizer means "less economic" food which is a fairly big problem.
If you currently eliminated fossil fuels from the process the price required to maintain our current food levels would escalate dramatically. In practice this would mean likely that both food production will drop and food prices would rise.
I don't think it's disingenuous. Maybe I should add "affordable" as a prefix to nitrogen fixation, but "less economic" fertilizer means "less economic" food which is a fairly big problem.