Why hydrogen energy has seduced a generation of politicians

Hydrogen is often touted in the scientific and general media as a silver bullet for reaching net zero emissions. Such articles might include the following claims:
It’s the most common element on Earth.
It can be synthesised from electricity and water.
It can be stored and used to produce heat and electricity.
It provides energy without harmful CO₂ emissions as it burns to water.
When liquefied the energy per unit weight is superior to fossil fuels.
It can deliver power via a fuel cell.
It can be transported using the existing gas grid.
It burns at a similar temperature to natural gas.
Although I could put a “but” after all of the above, hydrogen presents a compelling case for its widespread use to support net zero. So, what’s not to like about it?