The "balling out Europe" stuff again. Their goal is to ultimately normalise the idea that the EU is an enemy in advance of the Greenland invasion. The leaking of clarified information doesn't matter because A) US service personal are expendable and B) the involvement in Yemen is now only to keep up appearances of being allied to Saudi Arabia who will in the long term also get the same treatment as the EU because their fuel output competes with US/Russia.
Maybe publicity? The group in charge knows they can do no wrong, and I would bet their voters liked the rhetoric in the chat. Maybe they use controversy as a tool to keep people distracted (or even lead them to check out).
Agreed, absolutely everything done needs to be viewed through the lens of what will the ratings/viewership be. Everything makes more sense. Just think of the public spectacle, interviewing world leaders in the pulpit at the Whitehouse for example. It's a live TV show.
The question is what consequences will it have. I have only seen good outcomes for the administration from the chat debacle. It is worrying, this could have led to a VP resigning.