Excuse me if I'm retreading ground here but do not understand how people are still trying to frame the signal shit as some sort of monstrous opsec failure for Trump personally. Like I get people fucking hate him on principle, sure go ahead and just be mad. But the real issue seems to that this was some staffer who added a journo to the chat on a secured device for the express purpose of manufacturing a 'leak' and damaging the credibility of the administration/cabinet. We even know who the staffer that's responsible for adding mr.burg to the group is and I haven't heard of any punishment falling on him.
The white house employs 1700+ people from administrative staff to groundskeeping and many are and have been employed there since Obama or earlier. It's no surprise that unless you fired literally everyone that you'd have some kind of rats running around doing things like this, and we have other examples of this same thing happening inside the FBI, CIA and DoD just weeks ago. If this situation had happened under Bush jr. or Obama it would have been framed as a a failure of the staff and them being treasonous, spiteful retards but because it's happening on orange Hitler's watch it's all his fault. How is it unreasonable to expect the fucking pencil jockey admins to not try to fuck with you given the chance.