If it was a Cop, they would have.
A Crown can attach a charge of lessor degree. A Jury or a Judge trial, can then apply either or, as the evidence merits.
Mr. Parent is charged with criminal negligence causing death, dangerous driving causing death, dangerous driving, failure to stop and failure to offer assistance. The trial is expected to last two weeks.
These are the charges and as I understand in Canada if convicted on all they run concurrent, the judge cannot assign as consecutive.
220. Every person who by criminal negligence causes death to another person is guilty of an indictable offence and liable
(a) where a firearm is used in the commission of the offence, to imprisonment for life and to a minimum punishment of imprisonment for a term of four years; and
(b) in any other case, to imprisonment for life.
R.S., 1985, c. C-46, s. 220;1995, c. 39, s. 141.
http://laws-lois.justice.gc.ca/eng/acts/C-46/page-98.html#h-76