Why so many videos of the meteor this week?

Well the answer is that in Russia almost everyone has a dash cam.  This is due the corruption within the law enforcement and even the legal system.  Search YouTube for Russian Car Crashes and you will find numerous incidents caught by dash video cameras. 

Perhaps in the near future we will be required by our insurance companies to have dash cams in our cars.  There is already one insurance company offering discounts for installing a monitoring device in your car for 30 days.