Had they taken fifteen seconds and watched the video closely instead of wetting their pants and screaming aliens, they'd find this is likely a reflection and nothing less. During the video you can see a shadow on the ISS in the lower left hand corner. As the shadow moves over the ISS, the lights on the non-existent UFO disappear at the same time. And there are lights on the ISS that correspond with the lights on Thridphaseofmoon's "mothership" UFO.
Sensationalists with their own agendas - be it fantasy or creating ad revenue from videos - are a big part of the problem why much of this subject is the recipient of ridicule and academic disdain.