Zimbabwe is pretty confirmed, if you read above you will see the photos, tweets, and responses to someone that was on the plane with racers who was told where they were headed.
As far as it "not being dangerous" there is a difference between soccer teams playing at a stadium and "make your way (by bus, train, car) to this location as TAR racers do. Those warnings about dangers all came from the UK gov site, including the ban on an camouflage wear. So if the buses, trains, and cars are all dangerous ways to travel, that could restrict activities for racers. Ditto the warnings about poorly run and dangerous safari and animal santuary or zoo areas.
