Nope, don't like it. Design seems to be "Way overpowered at winning one way, but can't win at all another way, therefore it all balances out". That's not how balance works. Not balanced mechanically. Thematically, abilities feel ridiculously mismatched for the kind of civ that the Kongo actually is. But may that's just me, and the Kongo actually do enjoy massive tourism from having a veritable dragon's hoard of religious relics and the world's greatest works of art.