C-3PO’s barrage of one-liners spoken to no one, the sudden appearance of R2-D2’s rockets, and the notion that every single droid head is totally interchangeable coming in the span of five minutes are all much harder for me to swallow.
Don’t forget to include Threepio’s head magically being able to operate independent of a body when it was established in TESB that it couldn’t.
Damn, that detail never occurred to me. Nice observation!