Hydrogen vs. Battery Electric Cars

A question and a comment: Question - what was the source of the Weight - distance graph because is shows the FCEV being about 1,000kg currently - but the Mirai weighs close to 2000kg, the same as a BEV these days.
And the comment - IF the electricity grid fails you can't pump hydrogen, you can't pump gas. But people with local generation may be able to charge their vehicles. So even grid load and grid availability is not as clear as your comments make it seem.