I think it’s the knowledge that hydrogen tech is being pushed so hard by the oil lobbies because it’s currently most cheaply made by refining it out of oil using massive amounts of electricity which they can generate by burning more oil.
The astroturfing of hydrogen as a green fuel is disgusting, and straight out of the “Natural gas” playbook that got it piped to virtually every home in the western world over the last 200 years.
This is why the negativity is not proportional enough… why are the oil companies pushing for this? It’s not so the wind and solar farms can split water in the future and cut them out of the equation, it’s to delay BEV adoption and try to create a future where they are needed to supplement the horrible efficiencies of hydrogen production, and the need to transport it all over the world.
None of these companies are trying to be altruistic, they are actively destroying the environment and buying influence, to continue making money by doing it.
Batteries are more efficient, more energy dense, cheaper, last for decades and can be 97+% recycled after those decades of service to produce batteries that are even more efficient.
Hydrogen has lost the battle for transport power.
I will cheer any Hydrogen progress that is not attempting to be applied to something that already has a greener alternative.