> A Blu-ray disc, game cartridge, or printed book generally cannot be removed from a shelf by a remote policy change.

It may not be able to be removed from a shelf, but if it is protected by DRM they can still remotely revoke your ability to consume it, or prevent you from consuming it to begin with (for example geolocking on blu-ray disks). And in some cases a game cartridge, or other medium for software (including games) is either actually just an access key granting access to something on a digital store, or has software that "phones home" and is unusable if it can't contact a server.