I work for Hydro-Québec. We have similar legislation in Quebec. It allows the employer to maintain production using the employees who were there before the dispute began. That means non-unionized employees, because the unionized employees are on strike, of course.
I would like to stress this point, because I have been involved in these disputes on both sides, and I know that they are extraordinarily difficult in personal terms for workers and clients and also as regard labour relations within the company.
Once an employer uses replacement workers, it takes years to restore a good atmosphere in the workplace. The atmosphere at work has been poisoned by the replacement workers. This would no longer happened under this legislation.