Hydrogen vs. Battery Electric Cars

So BEV are like Pioneer Species which lay foundation to revolutionize the current transportation and FCEV are Intermediate Species "built on the foundation laid by BEV." Of course we as humans tend to follow efficiency, the battery is of course scalable but according to the graph shown it increases weight which then the turn to FCEV are not too far away. It is good to have as many alternatives as possible. It's like petrol and diesel but in a different way.