First of all, I totally agree with everything Bolivar said here, and you certainly hit the nail in the coffin. Like I've said before, Final Fantasy XII had one of the best story-lines to this day, but ultimately wasted it. I was disappointed with how brief and short it was, and how they didn't even attempt to lengthen any of the more crucial parts, like experiencing times in cutscenes, of the party members emotions. They just really left out the good stuff in it. I'm still a little miffed at how much culture, mythology, philosophy and other features of history in Ivalice weren't thoroughly explained. Although the bestiary provided a reasonably satisfying amount of information, it would of been fun to explore Ivalice. Not the terrain, but the characters, Rozzarian areas, and other things.
The music was too repetitive, and I was aggrieved to find that the final boss music wasn't exactly unique, like the other FF's were. It was just another track to me. They could of spiced it up a bit more, but instead they left it unfinished, incomplete, and hardly on the status of other FF tracks.