For those wondering if it was reviewed by the officials on-site? Yes. Before the race was over, they had four different angles from the TV truck that were reviewed.
In case you didn't know, they've been using a Race Direction panel to make the decisions on stuff like this for a while now. It's not a single person's judgment. That would include John Gallagher (Race Director), Mike Pelletier (AMA), and Tim McAdam. An FIM official from the international side (these tend to rotate in and out every few weeks) is there in case of an appeal.
They didn't think there was any intent by Cooper to head the direction that he did. It was caused by a cross-rut on the face of the jump. Everything after taking off was an attempt to regain control, or miss the Robo-Cam. They didn't think any rider would reasonably opt to try something like this on their own.
For folks talking about other riders who have been penalized for leaving the track and reentering, that generally had to do with the rider in question accelerating while off the track. As a side note, Marvin Musquin went off the track at Daytona, missed about seven Tuf-Blox, and braked before reentering. He wasn't penalized.
Okay, with that out of the way, I'm wondering...where are all the people who usually chime in to say that all official's decisions are biased towards Monster-sponsored riders?