I didn't read the pages of replies to this thread.......but as for the original post......
I say good. The kids were obviously committing a dangerous crime. Numerous people have been killed by people throwing things at drivers, hitting them. Anytime a person throws something at a driver, they are committing asault with a deadly weapon and/or attmepted murder as any object thrown at a driver can cause death.
Would this story be a big deal if these kids were assaulting the driver with a different deadly weapon, say a gun? If those kids were popping bullets at drivers, I'm sure the man would be heralded for stopping them.