It could be.
What I referred to specifically wasn't CUSMA in this case; it was a recent WTO decision. The United States had said it implemented its quotas because of national security reasons. You might remember that from President Trump. The WTO basically said no, and the United States just responded that it's a national security issue, so the WTO has nothing to say about the matter.
To that I would say that in a broad sense, it's always better when we have these dispute settlement mechanisms of the kind we have in the WTO. That doesn't mean it's necessarily solved, because countries might not implement—