Traffic stops always have the potential to be dangerous, which is why they always have to be handled extremely carefully. What would make traffic stops safer would be if everyone followed the Move Over Law. That is the easiest way to avoid this kind of tragedy.
No deputy or trooper will fault you for traveling an extra 50 feet to get someplace safe. You don't have to stop on a dime when you see the blue lights behind you. You have to find the safest place you can stop.