For clarity; I think that's an either or not an either/or/neither, but I guess that's another potential loophole!20.3.1 .... a camera or camera housing...
And
It could be changed to mandate the whole camera lens is unobstructed from the front AND add an exclusion to limit how much of the screen it taken up by bodywork to prevent a long tunnel vision camera port the width of the lens.20.3.4 ...passing through the centre of the camera lens. ... does not intersect
Or, just mandate a bodywork exclusion in the quadrant above and in front of the camera...