Trust me - I'm usually one that harps execution over play-calling, because if a play works, nobody ever complains. And you're right, had Bell not lost his footing, there's nothing to complain about.
I also fully acknowledged his play calling was better this game, so slow your roll a bit.
However, a large part of play calling is going with what's working and working to your strengths. First drive of the game - 24 yard rush by Abdullah, 13 yard rush by Abdullah, 28 yard pass to Abdullah, five yard Cross TD. Mostly running and good blocking downfield. After a drive like that, why do you then start the next drive with a trick play? IMHO we weren't in a position yet to put SDSU on their toes. We were beating them man-to-man, player-for-player.
You're right, it's little, but little things can crop up. I didn't like the play call. It's not a big deal, but I don't think it was the right time.