petra
Unless your someone who relies on a pump to keep you alive an 8hr power cut isn’t a tragedy.
One outage of one utility for a short time isn't a tragedy, though there are more people and organisations who DO depend on the power, or the water supply, or contact via a phone line, than you would think.
Repeated and/or sustained outages of multiple utilities in multiple locations can strain repair attempts beyond their abilities. That can cause tragedies.
Storm damage is a "natural" disaster (if you ignore the effects of human activity on the climate) but currently there are also several situations where deliberate aggressive human action could be suspected.
Here is a theoretical question for you to ponder - If you wished to stress a community to the maximum, with a view perhaps to stepping in and controlling them without or even with open warfare, in what order would you disable the utilities? (No need to post your reply to that, just base how you prepare for the coming winter of discontent on it)