In Canada no-one can sue the employer if the worker is covered by Workers' Compensation. That arises from the "historic compromise" where employers agreed to pay all costs for workers' compensation (which covers all medical costs, rehabilitation, and disability) in return for immunity from civil suits. The workplace health and safety regulator can fine the employer and bring charges against negligent individuals.I don't understand the statement by the plaintiff's attorney that the business can't be sued for negligence. Of course you can sue your employer for unsafe work practices. A man died because the dealership did not have adequate training and qualification for its employees and/or safety equipment in place.
A death is covered by a grant to cover funeral costs and support for dependents (financial support of children to age 18 or so, and training or retraining and/or financial support of a spouse). Payment for pain and suffering is made if there is some period between injury and death, generally not if death occurs in the event.
Every province has different programs but the systems are quite similar.