luckydube56 said:
Not only do they not need the Carbon Freezing scene. They didnt need to show Vader and Luke dueling.
In fact, they could have had Luke just show up with a stump where his hand used to be: "Oh this? Yeah, ummm, Vader cut it off, by the way, he's my dad."
The problem with this approach is that it can be used to excuse anything.
1: "Did the podrace in TPM really need to be so drawn out?"
2: "Did they really need the asteroid chase in TESB?"
or
1: "Did Anakin and Obi-Wan need to be that close to the lava on Mustafar? It destroys believability when they don't even break a sweat."
2: "Did Star Wars really need to happen?"