Consider the following: The Twitter files contains a lot of private information and outs employees whom have received direct harassment.
The ElonJet account contains publicly available information on a very accessible site. This does not make a statement about Musk nor does it tell who is inside the jet at the time.
Is it? What exactly is the functional difference between Musk revealing private corporate communications to a rabid audience looking for a target? Like you didn't actually explain how it's different.
Did he publish where they lived or currently were or simply the things they said? I'm sure anyone can see the difference between these two things.
He published what they said and the reason for doing it publicly is to ensure the current administration and administrative state (which would be the people at the heart of his accusations) would also have motive to bury the information. I'd also guess that such disclosures also help distance him from any legal action.
He published who they were, when they were previously unknown. I'm sure you can understand why unmasking someone like this is a problem, correct? If you can't then I don't think you value your current anonymity enough.
Though the fact that you immediately jumped to the government conspiracy angle it seems like you've planted your feet and aren't going to move. It's not doxxing because it's someone you agree with.
Consider the following: The Twitter files contains a lot of private information and outs employees whom have received direct harassment.
The ElonJet account contains publicly available information on a very accessible site. This does not make a statement about Musk nor does it tell who is inside the jet at the time.
Which is closer to doxxing?