I'm talking about that idea that the human mind will fill in far more details when given the chance than when everything is described exactly in a story or all possible scenes are shown in a movie. If I were writing "Marybell climbs the stairs," your brain is going to fill in what the stairs look like, feel like, smell like, if there's wallpaper or the color of the paint. Obviously stories can't be devoid of detail, but it's about chosing the right ones and letting the reader fill in the rest. Maybe you had played on the stairs a lot growing up and so have vivid sensory info that you will now subconsciously plug into the story.
What I'm getting at here, is that the first Matrix movie was mind bending; a feast for the eyes that left us with an end where we could imagine Neo saving humanity in whatever way we chose. Then...the writers filled in the blanks, and maybe it wasn't as we saw it, or wanted it to be. Maybe they set so much up with the second one that any end, however inevitable, was going to be a let down from our own power of imagination. We'd already completed the story, or at least the surety that there was one. Pinning down their idea meant that ours wasn't real. Or, maybe it went from being our personal special idea to the mass of everyone who didn't write the movie's personal special ideas.
Just a thought. Enjoyed the movies. Wonderfully creative.
p.s. I will give Lucas a small pass on the prequels based on this line of reasoning, but that still doesn't explain the dialogue.