The person riding into the motorcycle is a member of another Ducati forum (MrKO) and he posted this a few days ago.
It happened at a track event at Beaver Run put on by N2 and the person in second who clips the lead's tire is the CR. There was a red flag and the lead was evidently slowing to enter the pits.
As for the member, he proclaims to be 'ok,' but his GSXR1000 track bike... well, you saw the video.