I thought the original made plenty of sense, even if sometimes the characters just did what the script needed them to do without demonstrating to the audience why.
The biologist's talk about life and all was in a deleted scene and made his fascination with the "worm" thing more understandable. Really, I think seeing the deleted scenes filled in some blanks, but they were largely cut for time and pacing.
The "complete" film would've dragged, the tighter release edit left gaps.
The Jedi Master