I read it also that statement. And you don't have to worry about it. All professional video cameras are used with manual focusing. There is no professional or semi-professional camera with auto focusing (ok, there is a few exceptions). This camera is intended to be first professional DSMC camera so autofocusing is not needed in video production.
My concerns goes to exposure compensation because in movie mode you can't change ISO. I hope that compensation is good enough to cover all light situations.