Harmy said:

For what it's worth, I think this is actually a pretty good change. It lends continuity not only to the light but also to the hatch opening in the shot from the outside. I'd actually recommend you keep it because these are exactly the kind of fixes that are not distracting and actually add to the film.

I like the hatch as well, they even timed it to match it opening in the model shot from the outside. However, it does add even more height to the already cramped Falcon. What one person can barely stand in from the outside now has enough room for people to stand below the main floor and go up an elevator and two doors to the top.