OK, let's look at this from a slightly different perspective. The first Trump administration learned that they cannot hide direct backchannel contact with their authoritarian counterparts because someone is always listening to those countries/people known to be frenemies of the United States. This resulted in some Trump people being caught, charged, and convicted of various crimes linked to these backchannel communications.
What then is the most obvious solution to the communication problem with their fellow autocrats? IMO, this communication problem is easily solved by using Signal, Gmail or any other easily hackable system to communicate with other autocrats. There is no real accountability because there is little to no paper trail available, especially if your choice of channel has an autodelete option.
IMO, these people were caught because of their arrogance and basic stupidity of thinking and believing that they are the smartest people they know. They communicated on these insecure systems with intent, not incompetence, IMO.
Donald Trump learned in Round 1 that someone is always listening to adversaries of the US. Consequently, they were caught being in direct communication with their friends and allies.
So, in Round 2 what better way to share information with our adversaries, their "friends", than in an open and hackable communication channel?