She got it back after the NY Times reached out to FB/Meta:

On Dec. 2, a month after Ms. Baumann first appealed to Instagram to restore her account, The New York Times contacted Meta to ask why it had been shut down. An Instagram spokesman said that the account had been “incorrectly removed for impersonation” and would be restored. “We’re sorry this error occurred,” he wrote.

Two days later, the account was back online.

My own primary account was recently "incorrectly removed for impersonation" by "one of our systems," just weeks after I had to send a picture of myself with a handwritten magic code to an anonymous facebook.com email address to regain access to the account after they changed my password from beneath me. I've also got a desirable account name, but I think the main reason was talking too much smack about zuck. I mean, surely facebook and half its staff are going to be sued into oblivion for knowingly and willfully designing a system to crush girls' dreams -- they must have figured out they were doing that the instant they spun up an analytics team.

Now companies have their new scapegoat: blaming things on the “algorithm(s)”.

you didn't spell it right. Should be "logarithms"

It's insane that when things like this happen, if you don't burn your 15 minutes of fame to make the front page of a million+ user website you're just SOL.