Can someone else explain the story with "Ben"? Did he offend someone and thus get kicked off the rescue squad? I couldn't follow the reason why he was stuck sitting in a chair outside the cave.
From searching online the answer isn’t clear. Ben Reymenants gave interviews during the run-up to the rescue that may have pissed someone off; on the other hand, it was never clear that the signage was legitimate.
Basically the entire rescue operation sounds like it was conducted under a fog of war. No one was ever officially in charge, no one was legally authorized to do what they did (such as the medication of the boys).
Narongsak Osatanakorn was put officially in charge of coordinating rescue efforts even after his term as governor had ended. I don't know how involved he was with facilitating communicating between the teams but at the very least he seemed to be their official liaison with the outside world (although of course unofficial lines existed as well).