As pega provides the mechanism to do field level auditing for most of the classes, i think it would be worthwhile to have default data transforms already part of Pega product which do field level auditing for OOB data rules (if not triggers themselves, or have them configurable/disabled by default). If most of the customers need to update pyTrackSecurityChanges anyway with the same default set of data (and maintain if new data elements are added), it would be good to just have these pre-configured out of the box. There are only ~60 classes across pr_data,pr_data_admin, pi_data_connect classes.
If I understand your requirement correctly, you want this feature to be part of coming product release? If yes, kindly raise an enhancement request with Pega GCS or one of our moderator will assist you with this. I'll make one of them connect with you.
Kindly note:- An enhancement request is subject to review by the product owner.