I don't disagree with your points on principle, Dr. Bashir, but more in terms of the game itself. It's information you can't use for anything, except perhaps in World Congress situations and even then it's luck of the draw if it comes up. If we were talking a PDX game then I fully agree it's got a point, but without any reliable Diplo tools like embargos, requests to stop trading with someone, etc., it just isn't doing much for the player. I'm sure there's a way it can be improved to give better info (e.g. "The Mayans have found a new source of Iron" would be a good Gossip message). My other big, big issue with the Gossip system is the syntax for it is abysmal, and it semi-frequently drops grammatically incorrect statements. Considering I am playing the game in its native language, English, I find this to be an issue the devs should have fixed very early on in the game. The table from which the game pulls its info really needs to be updated.
I also feel that if the WC doesn't reveal the unknown Civs, and nor does competing with an unknown player over a City-State with Envoys, then the Gossip system shouldn't reveal that information. The only things that should are exploration and LoS from Suzerain-status City States.