They don't really verify the issue date
Most just look at your number and photo to check it is who you are. That's why in person verification can be done using any government photo ID, including the driver's license and Senior Citizen cards. If the MyInfo check already clears, turning up in person with a photoID is only a supplementary verification to confirm that. The MyInfo app checking is more the real deal imo, and since we're talking about real-time digital transactions here.
With the notifications sent to you that your MyInfo has been accessed each time, it is harder to run away from a fraudulent transaction.
This proposal already tightens a lot of existing loopholes while taking advantage of advances in government technology. Or rather, we're still doing sign ups the same way my dad signed up for his first mobile line in the 1980s - photocopy and store on file. Of course, if we're dealing with James Bond style espionage, there's a whole different ballgame to that. But this also far exceeds the normal levels of security.