I like the "the droid's been following Luke" argument Monroville makes there.
but about the whole "star wars movies do not jump around in time like that" thing: Yes they do. We're talking about it right now. It's been like that since 1980.
Some people here never thought of it as the same crash happening twice, others did. So if that worked for everybody before, why change it? It doesn't need to be explained. Both interpretations work. Changing something as silly as that'll only make people angry because it's "not the way they remember it".