If nothing else, it shows that the Clone is considered an eligible heir.
So it's possible that Lucan II might be the mind of 50 YO Lucan I in a new apparently 20YO force-grown body, and named as heir and true-son, by a still living Lucan I... then "Updated" regularly to match Lucan I's mind...
At what point is there a risk that the updated Lucan I/II decides that he's got a better idea than the pattern original and wants to do its own thing? It's always a risk, and possibly greater when involving a personality that is egotistical to the point of psychopathy