I can be helpful when tracking down issues or troubleshooting past events what the values of tuning parameters were at a given time. Adding the ability to Audit this table would allow retrospective insight into tuning parameter configurations.
A similar enhancement specifically regarding Auditing can be found here:
https://feedback.osisoft.com/forums/555148-pi-server/suggestions/18740068-track-if-auditing-was-turned-off
