You can't see in front of the SUV to see why it stopped in the middle of the road. The bike could have easily hit it if reaction was slower, he still slowed down pretty quick. Rider was wearing full face helmet, leather jacket and gloves, boots and jeans. Kudos to him. The person that rear ended him probably wasn't as attentive as she should have been, and wasn't able to stop as quick as the bike did. No big surprise there, and not an unexpected result. What would legal lane splitting do there? The guy didn't have time to check blind spots to see if they were clear and make a safe pass around. If these were 3 cars in a row, the same thing would have happened.
