Firmware rollback to an earlier version, Garmin, confirm this!

Good afternoon to the sports community.
I would like to ask more questions to the official representatives of Garmin.
In the latest firmware versions of the Forerunner series, it is now possible to rollback firmware to earlier versions. But, officially this possibility is not declared, why, and what risks there are in case of using such a rollback. Maybe there is information about the inclusion of the possibility of rollback in the next update with the possibility of rolling back also the firmware sensors, as in the Fenix series, thank you.