I've both prosecuted and defended people who have killed others on the road. The circumstances and results in every case were different. Now, being a part of the judicial branch, I'd like to think (in fact, I know) that the result in most cases is right. That doesn't mean it's right in every case.
One problem with Florida criminal law is that it does not distinguish between negligence that kills someone, neglgience that causes property damage, and negligence that is simply bad driving. Running a stop sign can kill someone, but usually nothing at all happens. In Florida, usually the result in the criminal system is the same - a citation for careless driving. (In the civil law system, killing someone results in a big lawsuit, of course, but the money involved is insurance money, not the bad guy's money.)
From the sentence you describe, it sounds like Raj was convicted of reckless driving. It's a misdemeanor, and the sentence is close to the maximum for that offense. Florida needs a felony that can protect vulnerable road users (cyclists, pedestrians, maybe motorcycles) from negligent and reckless drivers.