Given the fact that journalist Clarissa Ward was easily able to find one of the assassin's that attempted to kill Navalny, convince him on a unsecure phone line that she was a KGB official and they needed to immediately meet, and then show up to his apartment, that was an outright slum ( yes - their state assassin's live in slums )
It's not incredibly hard to believe that they don't exactly have their shit together for whatever levels of operations