The lights are on
Well I was a little confused on that aspect too, at first, but then I re-read it and I started to get what he meant. He was basically saying that it met his expectations, which means it was still very good, but it didn't blow past his expectations like other aspects did. If they truly felt that it was under expectations of how great the story could be, then they would have given it a 9.5-9.75. Don't worry about it not being as great as you think it is, it's still as great as you think it is. I always trust GI's reviews, and they've never failed me, whether I bought a bad game, a mediocre game, or a fantastic game, they usually hit it dead-on with their scoring.