the original info from the video:

the pilot and camera guy were put on gag order and had their camera equipment confiscated but not before hiding one of the tapes.

A few words of the video creator :

This is one of many CG shots I created for the upcoming documentary film titled EYES OF THE MOTHMAN. Release date is unknown. Syntheyes, Modo, Photoshop, and After Effects were used. IT WAS REPORTED TO ME THAT SOMEONE TOOK A VERSION FROM THE CLIENTS FTP SITE WITHOUT THE WATERMARK AND POSTED IS AS REAL FOOTAGE.

Case Closed !