I read it just now and I didn't get any impression they did it or knew who did it, just as you say they they were happy.
For many people, myself included, who grew up in the country, the power going out is not a big deal, and was a pretty regular occurrence. I say this not to downplay it, but because it's easy to see how someone could see the power go out while something they didn't approve of was happening, and feel happy about it, without really considering how big of a deal the outage is for people in the city.
I could be wrong of course, but the most single explanation is that this person just saw it as karma, not that they somehow knew something
Not unreasonable, but the person in question is a former army captain in a psyops unit at Fort Bragg who was kicked out of the force after she brought 100 people on a bus to DC for the January 6 protests, and has been hit with a restraining order to keep off city property for a year int he town of Southern Pines due to her anti-vax protest activity.
This doesn't mean she had any foreknowledge of the recent events, of course, but her comment doesn't read as an off-the-cuff casual reaction either. She's surely aware of the impression it would create thanks to her training and real-world experience with political activism.
If you take nutters off the internet at face value then you should.
Most crimes that make the news have a few dozen nutjobs calling in claiming responsibility. People will go to great lengths to get attention. And we're already talking about social media posts here...
For many people, myself included, who grew up in the country, the power going out is not a big deal, and was a pretty regular occurrence. I say this not to downplay it, but because it's easy to see how someone could see the power go out while something they didn't approve of was happening, and feel happy about it, without really considering how big of a deal the outage is for people in the city.
I could be wrong of course, but the most single explanation is that this person just saw it as karma, not that they somehow knew something