They get cheaper electric rates by agreeing to be the first loads shed if the grid is overloaded. This is a standard thing. If their generators didn't start, they wouldn't be cut off, but it'd be a big deal.

> You’re ok if governments give up and simply tell consumers “you deal with it”?

Paying people to be prepared and willing to go without electricity in times of extreme supply-demand balance is a part of the solution. It's a regular thing for data centers, hospitals, etc. It may be cheaper to pay people to install sand batteries than to install longer-distance interconnects, and if people voluntarily agree, why would you object?