Sure we do that before every release as well. But a rollback is a much less invasive surgical fix compared to a full database restore. You're down while the new db instance spins up and any writes in the meantime will be lost.
You can also test migrations against a restored prod database snapshot but again there's no guarantee some incompatible data hasn't been inserted in the meantime.
You can also test migrations against a restored prod database snapshot but again there's no guarantee some incompatible data hasn't been inserted in the meantime.