That shows a gaping misunderstanding of electricity.
For that to be possible in this situation, the assisted living and nursing homes would have to have their own, dedicated power plant that is knocked out by a hurricane, separate from the knocked-out power plants for anything else. Then you prioritize fixing that power plant first.
That would require them to be on their own dedicated circuits, separate from everything else in the same city block. And for the problem to be local to them, and not the outage of a big power station far away.
Idea: maybe these homes should have their own wind, solar and generators, not to be 100% reliant on the grid.