Those who find the settlement amount on the low side need to note two things.
1.  It's a settlement. Court cases are seldom perfectly clear. There's risk and cost in going to trial.
2. Non-pecuniary damages in Canada tend to be modest compared to those seen in the U.S. The 1978 Supreme Court of Canada decision in Andrews v. Grand & Toy Alberta  effectively imposed an upper limit of $100,000 for non-pecuniary damages for a severe case (young adult quadriplegic), to which other injuries are compared. Adjusted for inflation, that's about $360,000 today. The class action might cover people with different ranges of injury including less severe ones.