Well, I would say the guy is opened minded and also searching for the truth. If you watch his other movies you won't find anything that leads to an artificially created lens flare or so (intentionally). I think the guy is doing a good job to find the truth. If it is a lense flare, a optical illusion, an aberration under the sun or whatever, he tries to stay honest and also reacts to critique in both ways, positive and negative.