>Storing energy as hydrogen involves a lot more than just a tank.
The 1.3mm example was to prove that it's technological possible to isolate liquid hydrogen with such a tank. In a car you don't use liq nitrogen[1]. You just shift the usage-surrounding to make your point, it's like saying "but using kerosene in a rocket needs some additional measures too", true. Exactly like using a toilet in space needs some additional measures too.
You suggested that a tank used for ultra short-term storage of hydrogen was relevant in this context. I didn't. When you realized that your assumptions about hydrogen didn't hold you became unpleasant and childish.
The 1.3mm example was to prove that it's technological possible to isolate liquid hydrogen with such a tank. In a car you don't use liq nitrogen[1]. You just shift the usage-surrounding to make your point, it's like saying "but using kerosene in a rocket needs some additional measures too", true. Exactly like using a toilet in space needs some additional measures too.
[1] https://www.ieafuelcell.com/fileadmin/_processed_/e/e/csm_fc...