My 0.02 on the motion:
In my opinion it was a variation on our 2008 strategy, so it may have something to do with how Mickey Andrews was playing it.
Our passing traditionally comes mostly out of trips or tight formation. We never ran tight against FSU, but did run a lot of trips in 08 against them. They were doing this goofy thing where they would double the center, so we walked an A back out into the slot to run trips and the space left over was open for our midline stuff. I don't think we passed much out of trips vs FSU in 09, but it's been a long time and my memory of the game is clouded by booze, but we may have been lining up trips to force FSU to check into passing defenses, then using motion to run against those passing defenses. That would be my guess, anyway, thinking back on the game. I seem to recall we had a shitpile of rushing yards.
If someone is interested in doing the analysis, the thing to do would be to look at what plays were called out of the motioning trips formation, particularly run/pass ratio and what sorts of plays the runs were, and compare that to the run/pass ratio of the non-motion stuff.
In general, I have noticed we run out of trips a lot when opposing teams are in man coverage. All we're doing basically is getting one automatic block by walking the slot out, and watching the other team carry a defender with them. You'll notice, if a team is playing zone underneath, we don't call run plays out of trips near as much. Now personally, I would think the ultimate thing to do with that would be to start throwing to the slot versus that defense, but to do that we'd need a QB who can reliably deliver the ball, and we'd need blockers.