Where do you see that? Seems one can still print via SD cards without any issue.

It says:

Operations That Do Not Require Authorization The following actions will remain unaffected by the authorization mechanism:

Sending status information from the printer (e.g., MQTT status push for tools like HomeAssistant).

Starting a print job using SD cards.

General operations outside the listed authorization controls.

https://blog.bambulab.com/firmware-update-introducing-new-au...