Single Status Update
Personally, I'd like the opening a little more if we see Twilight tell the story to the two fillies. That way, we can see them react to Twilight's turbulent battle to preserve her friendship. Give their end to the conflict some more weight.
Also, (small) continuity error. Twilight's lesson about fighting to preserve her friendship happened back in season two. The journal didn't appear till season four.
Ya, I was thinking the exact same thing too. Unless lessons taught earlier on in the show were added into the book by Twilight. Some of the dialogue later on seems to actually implicate that.