The completeness of the representation is not as important as its existence. What that designation often implies though is a different risk estimation, a different path, and different organizational treatment.
Not speaking to this incident, but for impact it doesn't matter if it's configuration or code. It's a change. Sometimes those changes are external.
"This was due to a configuration change that impacted traffic routing within our database infrastructure”
https://www.githubstatus.com/incidents/kz4khcgdsfdv