The whole point of having a strike or a labour dispute is to have an impact on the employer. You can't have an impact on the employer if you can't impact their business. Often it's also a public relations battle for the hearts and minds of the support: whether the public supports the employer or the workers in this particular case.
I think that, as illustrated with the Air Canada situation, every single Canadian understands that if you go to work for 40 hours and only get paid for 30 hours, that's patently unfair. This issue wasn't going to be resolved at the bargaining table, and those workers decided that they were willing to go out on strike and contravene a government order to return to work. Those workers felt strongly that this issue was enough for them to take action and potentially be fined and have other consequences.
When we are pushing workers to the brink, and they do not have the framework of being able to go out on a legal strike, that's not going to end strikes and labour disputes in this country. It will make them more unpredictable, potentially longer and potentially violent on the picket line. That is a huge problem. It means we will have a less stable economy and less stable workplaces.