(Oh, why not, I'll play - good topic, LSThiker!)
So, if its not simply a bird flying close to the lens (which it is), then who had the method/motive/opportunity to send an amazingly precise and fast package delivering UAV to swoop down and blow up his competitors launch vehicle?
Why.... Bezos! Mu-haaaahaaaahaaaaa!!!
(The above to please be interpreted as faux conspiracy theory humor only. Cadets, please think about doing an AE current events brief this month on the actual causal factors of the explosion - and/or on the SpaceX - Blue Origin - SNC - other firm space races going on).