I think that as well as finding out the Reason for the business decision to restrict that field we need to know if there are any repercussions if you modify the field using the workaround where you do a private check-out of the pzCustomProperties section on Data-Admin-Connect-JNDIServer and altered the Max chars on Presentation tab
This limitation does not seem to exist in earlier versions.
I tested in ML4 and there I was able to save names longer than 30 characters:
--> Does this have anything to do with the change with Ruleforms where now some are Harness based versus some which are still form based?
--> And if so, can the fact that this has now restricted the Min/Max chars be considered as a new limitation/bug?