Never understood why it should make any difference to be honest. Though I would agree with taking it off him as IMO the captain is usually harder to drop and Clingan hasn't shone this season.
But in all honesty, does Keogh talk or clap less if he's not the captain? I'd expect every player to see it as his job to talk and encourage those around him, especially those older than 22. I wonder if anything changed since Platt said we don't talk during games?