That's the OP. You didn't provide any sources yourself.
The issue of leakage is just a potential risk, as your own link mentions. In practice, it's a non-issue. We don't worry about gasoline begin too dangerous or EVs being too quiet. It is just fearmongering. Like I pointed out in my study, they are looking at hydrogen for long term energy storage, because it is good at it. Your claim that we can't store for long periods is simply wrong.