That list of times with ons* and offs five to fifteen minutes apart is not rotating blackouts. It could be part of the repair and restorations procedure.
Hmmmm. My area (part of New Hampshire) has a selectable flat rate plan for natural gas. Seems like I always choose the wrong plan. A few times I to chose the flat rate and the market rate dropped to half of that, or I chose the market rate which rose to twice the flat rate.
Later I was guessing that if market price rose then those choosing the market rate had to help pay for the gas used by those who chose the flat rate, not just pay market rate on the gas they actually used. Or if the market rate dropped, the revenue collected from those on the flat rate would show up as a further reduction of the bills of those on the market rate.
Too bad that so many people did not know how to drain their house plumbing (or could not drain the plumbing). Admittedly they would have to make an up front choice, drain the plumbing versus let the water trickle. Those with water filled or steam operated heating systems would have to drain those systems too. And be able to switch back and forth between (if desired) refilling the plumbing/heating if power returned and drain it all again if power went out again for an extended time.
* Aye, ayes; yes, yeses; nay, nays; no, noes.