Sorry I am not sure I know what you are asking or if are having an issue?
Yes the binding should allow you to have no user/pass with onvif, however I do not test this very often and hence there could be bugs. If your camera does not have PTZ or you dont care about that feature you can deliberately put the ONVIF port to the wrong number and provide a snapshot over ride and the camera is then much faster to connect as it will skip the ONVIF.
Lastly in a few replies recently people have smart quotes showing, these are tiny 6 and 9 looking quotes and they cause issues with Openhab if you paste them into config files. Please use code fences as it saves new comers issues if they try to cut and paste things from the forum, here is how: