Yes, he got off easy. But prison is expensive, and probably should be reserved for those who, if not locked up, will likely re-offend.
This guy was a selfish jerk, but he’s not a career criminal. Hopefully the victim’s family will go after him in civil court. The family of the dead man wanted to give him a second chance. Let’s hope he doesn’t squander it.
I won't be surprised, though, when he does.
Unfortunately the victim's forgiving families are rarely the ones who will be the victims of the perp's future crimes. It is society as a whole that is being protected by locking up criminals.