That documentation is plainly wrong, and needs to be amended. I’ve rallied the troops.
That said - yes, you are correct, auditing is not currently where it needs to be. Both Perspective and the new project system in 8.0 are completely absent from auditing - something we’re aware of, and which is high on our list to fix. The last two items on your list also seem like bugs - I’ll do some investigation, because those would be independent regressions from existing behavior.
Specifically regarding updating the internal user source - that’s not included with “database updates”, because it’s not an external database. Auditing our internal database for changes to configuration is also on our list, but it’s not a bug that internal user source updates aren’t audited.