Tbf they did start to reduce a bunch of provincial trade barriers via Canadian Free Trade Agreement (https://www.cfta-alec.ca/ https://www.cfta-alec.ca/) which

Tbf they did start to reduce a bunch of provincial trade barriers via Canadian Free Trade Agreement (https://www.cfta-alec.ca/ https://www.cfta-alec.ca/) which was a project started a decade ago. They explicitly excluded alcohol though.