I've been riding and racing sport bikes for 10 years. These kids got what they deserved for 2 reasons.
1. They didn't have helmets
2. They didn't plan ahead and see what was coming.
A smart cycler sees accidents before they happen. I'm always looking, and have been fortunate.
For Americans, I recommend the Motorcycle Safety Foundations Beginner (at the least), Intermediate, and Advanced courses for all riders. (The only one I have not taken is Instructor) and the knowledge learned has saved my ass on 100 occasions.
Bling Daddy