Seems the default value in the diagnostics for enable_nps_survey is false, so if the admin never changed it, it is reporting as not enabled.
The setting is defaulted to true and should reflect that in the data collection.
No testing required.
Fixed on master and cherry-picked to 5.12 and 5.13 branches
Verified by Eric with data from the upgrade server running 5.12.1.
Labelled the ticket ‘done-5.12.1’ and labelled the PR. Keeping in resolved to verify on 5.13.
Verified with data from the upgrade.test server running 5.13. Closing.