You defeat your own argument by bringing up lens flare. JJ Abrams says it adds immediacy by implying that the cameraman was actually there, filming it, and didn't have enough time to set up the camera to avoid it. What Abrams misses is that making it self-consciously "filmed" reduces immediacy, because it means that the audience isn't there. In Babylon 5, the lens flare was mostly restricted to outer space, not inside the station, and the effect was doubly powerful. Lens flare in space said "you are not here", and the viewer was consequently deeper immersed in the illusion of being trapped in a tin can floating in space.