Compared to novels wirtten today, it does seem unsophisticated and badly structured. I'm not sure of the circumstances, but he really could have done with better editors.
The Hobbit is actually a more traditionally structured story, so hopefully it will flow better than the Trilogy.
I would disagree on the points on Jacksons directing tho. I thought it was well directed. Also, he was producer on the films, and I'd find it hard for anyone to pick holes in the production values of the Trilogy.