they are till hiding it for the good reason, non elite FTers always want people to accidentally leak that the # is XXX-XXX-XXXX (edit:whoops, what was I thinking!) besides, the cow beat everyone!
besides back of physical mailed elite card, you can find priority contact #s on the Air Canada mobile app. On Android you click on the Aeroplan icon on the bottom right, tap the digital membership card, and priority contacts show.