Video collaboration can at times become restrictive. you loose the freedom to move inside the room as your pictures get lost in the live session. but that is a natural way of collaboration, you do it all the time in your local meetings to explain a point or initiate a discussion.
With controlled camera tracking you don’t have to restrict yourself from moving to the screen or the whiteboard when the discussion needs that. the camera turns and zooms onto you and let you have a feeling of unbridled video collaboration.