No qualms there.
The message however is flawed. Quebec does not have free trade with Ontario. Ontario has mostly free trade with B.C., but not all. Nova Scotia has free trade with some provinces, but not with others. We could go on and on.

Canada does not have 'interprovincial free trade'.  Why is the Prime Minister suggesting other countries 'need to have free trade with Canada', when we don't have it within our own country?