That story is so illustrative - there are so many things you could say about the case, about the driver, about how certain history and interests have led to such an arguably perverse reliance on individual motor vehicles that to require more training or make it otherwise more difficult to get licensed or raise the driving age would apparently put an unreasonable burden on people who putatively need this kind of transportation to fully participate in society.
Or you could just say nothing. The woman and her dog have tragically died, and the case has provided no deterrent to any current or future drivers from not taking their role as the pilot of a 3,000 lb speed machine deadly seriously. Rather, it has contributed to an already enormous body of such precedent for future judicial decisions in criminal trials.
Sometimes I even get angry at the weather... but a wise cyclist can only assume that all drivers are poorly trained, reckless, and immune from prosecution.