I'd put it at 10% honest mistake and 90% nefarious "mistake"
Of all the journalists that could have been mistakenly added to a sensitive chat it is Russia, Russia, Russia, suckers & losers, Iraq WMD hoaxer Goldberg?
1. Accidently inviting a reporter to a signal chat about a military operation that ended up being successful in every way?
Fire everyone!
The reporter once he realized that he was mistakenly invited to the sensitive chat dealing with a military operation began taking screen shots instead of leaving immediately by the way. So there's that.
2. Purposely telling the world about a hard deadline for evacuation from Afghanistan to end our two decade presence there that ended in a complete and total disaster in every way, including thirteen dead Marines?
That was a success. Why would anyone be held accountable for such a success? We should be giving out promotions and medals.
Communist? Pro-Palestine?
You don't say.
Next you'll tell us that he is a climate change, DEI and trans activist as well.
All different fingers of the same commie fist.