Adding a bit of first hand experience for AM purchased, Canadian discounted WDW passes.
I bought some last year and one this year through the Cdn discount offer. Although the AM site said must be used last year, there was no expiration on the tickets I received and was able to link them to MDE post theoretical expiration date, and make fast passes.
When I came to exchange for the physical tickets at WDW they wouldn't link, manager was called, etc. The tickets still showed as last year's and I think it was a pixie dust situation that they just gave me new ones for this year instead, at no additional cost. So putting this out as warning for those who see the 2030 expiration date, there may still be complications...