TFA left a lot of that out -- you're right.
So, how much time does a normal guy serve for murdering a few people in a DD accident? In some US states, you can be charged with murder for that. The article didn't make a good case for why this would be a justice issue. Probably b/c Daily Mail
hard to find a 1:1 comparison, but several years ago an immigrant truck driver ran a stop sign and killed a bus full kids on their way to play hockey. He wasn't drinking, just missed the stop sign. 29 charges, no plea deal, 8 yr sentence and now he's being deported.
More recently, a guy high as a kite blew through a stop sign and killed a mother and her three daughters. He got a 17 yr sentence but he had repeat traffic violations and was driving on suspended license at the time:
https://globalnews.ca/news/8838170/ontario-driver-sentencing-crash-woman-three-daughters/
(post is archived)