I think it is nowhere near enough. Clearly, Davis is a dangerous and terrible driver, which he knows. He has made a series of deliberately irresponsible decisions which is his fault. Getting behind the wheel of a car with his track record, no insurance, 67 in a 30 zone. At some point being deliberately careless with other people's lives, can't all be an unfortunate accident.
I never usually agree with punishing the "outcome" rather than intention, but we do, and this has both. The victim was an 18 day old baby, the driver has taken potentially 70-90 years of life from someone else, and that's without taking into account the family that habe to live with it forever.