@Kestrel I feel like that comes down to personal experience. For me, I’ve seen fully cerebral Jesper Lynd / James Bond style conflicts go rather well even in a fully transparent situation. In those cases, the players of the character locked in CvC use the transparency to make the conflict a better watch for those people just on the outside looking in. Big reveals and stuff still happen, but both sides of the conflict are in on it from the start so that the story gets more detailed.
I think there’s a number of people who believe that CvC automatically involves the entire playerbase whether they want to be involved or not, and really, it should only involve the players of the characters directly fighting in the narrative, be it a crowbar duel in an alley behind a bar or a long drawn out series of espionage plays that result in the PC that is the King of Royalland being assassinated quietly in his private library.