If this is the only practical solution for hydrogen fuelled aircraft, then it can't fail in passenger markets because there will be no other alternative to compete against once kerosene is too ecologically taxed.
With planes though, you only need to deliver it to an airport. Airports are also very frequently placed next to large bodies of water, so with enough electricity you could make it on site.
I'm willing to bet that Hydrogen will never take off for cars, but I think it could have a place for planes and ships, and even trucks in some situations.
https://www.airbus.com/en/innovation/low-carbon-aviation/hyd...
The general idea is to use liquid H2, like the old KN-88 design.