Crazy? Yeah, those guys are crazy lucky. You can't really tell because the plate area is blurred for some reason, but it looks like a combo of hitting the dog combined with a touch of front brake lock up. I ride a buell 1200r that weighs a touch over 600 lbs, I've hit small animals (2 rabbits and a cat)before at highway speed and they basically just split in half or get crushed flat where you hit them.
While I can understand the desire for some people(I'm not trying to offend you here in anyway BD) to never ride a motorcycle on a highway because of things like this, is in my very honest opinion not a very good logic to have. By the same logic, one would never go fishing on a boat because they can hit submerged logs and sink. One would also never want to ever drive a car on a highway in BC because we have elk, wolves, deer, carriboo, moose, bear, mountain goats, bighorn sheep etc etc that can take out a car just as fast as that dog took out that bike. living a life of not doing any fun stuff because there's a 1/1,000,000+ chance of dying while you do it, is a pretty boring life to "live"...