I rummaged through some old menus... here is an example from one AC international J "Executive First" TATL wine menu from April 2004... just as a data point for those curious about Canadian vs. World wines on the menus back then:

White Wines

• Wild Horse Canyon Cordillera, Okanagan Valley, British Columbia
• R.H. Phllips, Chardonnay, Dunnigan Hills, California

Red Wines

• Château Des Charmes V.Q.A., Cabernet Merlot, Niagara Peninsula, Ontario
• Château Du Vieux Puit Bordeaux, Premières Côtes De Blaye, France
• Santa Digna Cabernet Sauvignon, Curicó, Chile

Regional Selections
We are pleased to offer the following wines on flights to/from Israël:

• Carmel, Private Collection, Sauvignon Blanc
• Carmel, Private Collection, Merlot

Looking at other international J menus from recent and further back... some have zero Canadian wines. I believe this is status status quo, IIRC.