Gotta love the (almost) inbreeding implications…
On a serious note, yes, it does seem like Lucas was making things up as he went along… He may have felt a burden to conjure another “plot twist” or “surprise” like <span class=“Italics”>The Empire Strikes Back</span> had for RotJ (or at least attempt to make it as good as the plot twist in ESB).
Yep, Georgie boy was definitely making things up as he went along. He never should’ve fired Gary Kurtz. Return of the Jedi was originally going to be about as dark as The Empire Strikes Back but George scrapped that idea much to my chagrin. Instead they went with the version of episode 6 that follows a lot of the same beats as episode 4 does. It’s also quite similar to episode 7. Too much repetition in this saga if ya ask me.