Courts award damages and costs, LMG can afford expensive lawyers and she’s made imputations against the company that they would be able to demonstrate effected their standing and business.
You can’t just say specific and detailed shit about people and businesses, in a high profile way, getting maximum attention, and then not expect any consequences. Canada does not have the same first amendment rights as the US, and even in the US defamation is a powerful legal mechanism. She’s risking a lot.