I can't talk for winston, but in my game, HC settled 2 cities towards me and entered in missionary frenzy ( really, until now I saw 5 missionary from him ). And I think he was preparing to take that barb city as well.... Either way I had enough forests to chop it if needed. But you got a point: the wonders are falling down very slowly ( I'm not sure , but I think that the Mids are still open in my game ). the land is not that good, so it is probably not that surprising.