I can’t find any information to confirm this policy change. Even AS’ website doesn’t list it (old policy still).

Link: https://www.alaskaair.com/content/de...s-another-site

If you booked a non-saver fare, you can simply cancel and rebook at the lower price with the difference being returned to your Wallet.

It sounds like they didn’t actually reissue your tickets and made a policy exception.