The actual Phoenix lights bear a VERY strong resemblance to a string of parachute flares dropped from an aircraft.
I've seen a few of those, to say the least, and that was my first reaction when watching the video.
"Parachute flares dropped from an aircraft!"
Respectfully, I think you have in mind the more familiar video, and not the video of the lights which overflew the city as mentioned in my post.