The only reason the parameters table would be useful is because making changes to the code had so many things blocking it. Similarly, auditing for this sounds unnecessary because it used to be in code which means that you had source control as your audit trail.

So your two wins were basically a "win" of not dealing with extra ceremony around code changes, followed by a "win" of recovering the functionality loss of the first "win" because future changes to this wouldn't go in the code.