They were more involved in CETA than they are in NAFTA, and much more involved in CETA than in the TPP. The degree of involvement in the case of CETA came from the fact that the Europeans wanted the provinces to be there. Why? Because they knew that, constitutionally, the governments of the provinces wouldn't open up on les marchés publics.
On October 2nd, 2017. See this statement in context.