OSI supplies/supplied the absolute arch enemy of Daumann, it gets public through the Bundestag, Daumann isn't very fond of additional resources going the way towards their foes, Daumann deals with the issue through mercenaries. I thought my former post made that clear.
Edit: Just noticed your edit. I assume that neither Rheinland politicians nor their admirals like to accept backtalk, and thus they decided to issue the ban to show that they do not want to put up with the leaders comments anymore.