Even if that is the case, what is the reason to forbid the access to the camera completely? Just remove the stock camera app with the proprietary algorithms in

Even if that is the case, what is the reason to forbid the access to the camera completely? Just remove the stock camera app with the proprietary algorithms in them. And let other applications access the camera trough the stock Android camera API. A camera is in the end a sensor that captures some video, why locking down that video stream? I get the algorithms, but leave the raw video stream to be used by other applications.