I have here a quote from October 4, 2015, something the man who would become the Prime Minister of Canada a few weeks later said. It's from a Radio-Canada article, the title of which basically translates to “Trudeau says TPP won't touch supply management”.
As we know, though, it was touched.
Without legislation, we have to take the Prime Minister's word. Why would his word carry more weight in 2023 than it did in 2015?