I drove 1800 miles in a Hydrogen Car

11:23 90% by 2050? Perhaps somebody who decided that should go back to the study board and read the Paris agreement. 2050 is so out of range for the USA that it is a clear violation of the treaty.
Hydrogen is an important factor for the future industry. Steel and chemical industry ned such huge amounts of this stuff that it would be an utter waste to put it in totally inefficient HFC cars.
Sorry to say so, but the amount of green hydrogen needed is nowhere seen to be available any time soon. 
So let's not wast it on cars. 
Batteries have their issues. Very true. Yet the advances in batteries are so fast, that it is almost unbelievable. CATL and others are now producing lithium and cobalt free batteries. Tesla is using LFP batteries in their MIC M3 SR+ models. Lithium yes, cobalt gone. This is the present, not some time in the distant future. 
All German car manufacturers stopped investing in HFC technology for passenger vehicles. And as the battery costs decrease and technology advances it becomes even questionable whether heavy duty trucks and trains will be electric rather than HFC driven.