[Swenrekcah]

Like most technologies, there are upsides and downsides. There is no need for everything in the world to be powered the same way, use what makes sense in each context.

For long distance heavy trucking, batteries are both very large and heavy. Hydrogen can offer an alternative there.

For air travel, batteries are very very heavy. Hydrogen is as far as I can google comparable with gasoline on that front, so an attractive proposition there as well.