At the very least, loss of driving privileges pending classwork and retesting should be required.
If a death is accidental then that lessens the severity, but it's still pretty high. If we're going to let you drive a two-ton hunk of metal in close proximity to squishy humans, then you bear a substantial responsibility to have the capability to do this safely.
Unfortunately, this attitude is anathema in the US. Personally, I think we should raise the driving age, greatly raise driving test standards, and require regular re-testing at an interval of a couple of years. I got my license at the age of 16 by passing a test that a half-blind monkey would have no trouble with, and that was the last time that anyone ever officially inspected my driving. It's insane.
But this will never happen, because a large segment of the US population would tread that sort of thing as an attack on their rights. People generally vastly overestimate their own skill behind the wheel and take the idea of regular testing as a slight against them.
I have to go through a skills check every two years in order to keep legally flying airplanes, even though the only person I'm ever likely to kill there is myself and my passenger if I have one. But I'm allowed to drive a car that could easily kill a dozen people or more if driven negligently, even though I haven't been tested on my skills in almost two decades.