Mobile account authorization is critical for national security because of the rampant requirement to use cellphones as 2FA / password reset for everything else, including GC Key itself. The government needs to step in. The question is what particular person in the government has the power and motivation to do so. Have you tried the CCTS? CSE? They might have some power, but the upcoming potential Cyber Security C-26 act should spell it out for them.

It should be doable to find some big fish to take this on, especially since everyone is vulnerable to SIM swaps assuming every other Canadian phone company has such lax security.