What do you feel "held responsible" means?

At the scale of counties and continents, this either means some statutory duty has been breached, or some political decision has been taken that favours the current arrangement over one with more availability of backup supplies - in exchange for other downsides (e.g. cost).

Realistically it's the latter. And this means that different politicians and political movements can now propose more plans for energy stability—maybe additional funding for renewables, expanding nuclear provision or so on—and hopefully this will affect political and regulatory decisions in the future. At this scale—and for all its flaws—the ballot box is the only real tool for accountability.