Nah I dont think it is. Watch how he ducks his head at 40 secs I think and the guy in the red shirt looks back. He also kinda leans to the right as he is ducking. You can also see the shadow of the deer on the ground.
I dunno; deer are certainly capable of that but unfortunately, they usually just run right in front of the motorcycle/motorist. It's pretty good editing if it is fake.
Seen that one before. Doesnt look fake to me. Never had one do that to me, they just seem to run out in front of the bike all the time here in Wisconsin. They can easily run 25mph across the road.