I've always thought of that as a more OOC rule, as it'd be asinine to tell people not to be a dick ICly. The whole point of a Rev round is to literally revolt against the Heads of Staff and CentComm, and having a nice, friendly Head of Staff would make it near impossible for the Revs to gain any momentum. I admit that I went a teensy bit overboard with it, and that I should've payed more attention to my forces as a whole.
Again, I feel as if that rule is more OOC-bound, as again, it'd be asinine to tell someone that they can't be an asshat in character. That's basically restricting someone's roleplay because people don't want to get their characters feelings hurt.