Ehhhh, you ain't gonna like this.

When the flag disappeared at 2:04, this event came simultaneously and exactly tapered with the arrival of a purple flare at the base of the camera's field of vision, and a change in the depth of field of the camera's focus from close to far. The purple flare was not from the flag, as it disappeared as soon as the depth of field change was over - and despite the 'flag' being in the field of view.
Each time the flag disappeared, the depth of field was simultaneously adjusted to far behind the LEM and farther objects were in greater focus. Each time the 'flag' crept into the picture, there was also a commensurate change in depth of field to nearer objects. Notice that the flag creeps in and out at a consistent speed each time - almost as if it were mechanical and slow... like a lens controller.
Notice the change in the clarity of distant formations/shadows/craters at depth of field point 2 as compared with depth of field point 1.
Finally, this also was not actually the flag - but what is called a 'gamma flare' (there were gamma flares all over this video - really bad) - as you will notice, you don't see any pink or red at all in 'the flag' despite being able to see reds in the color mix on the left. The 'stripes' you see on the right are only the gamma flares from sunlight hitting the white stripes of the
static flag
which is not actually in the camera's field of view. Flares which arise as a result of reducing the depth of field of the camera.
Take static photos of 10 or 12 shots through the video, half with the depth of field close and half with it far - and then notice the purple flare at the bottom of the picture which happens when depth of field changes... and the blurry features in the point 2 depth of field when the flag is in the picture.
... again - this is anecdote (
modus absens) - this is how deception is sold, by presenting anomalies to persons who have no experience in the medium involved. Creating a 'halo of doubt' through very mild (and false) induction, sold as falsification.