Since stats are being tossed about his about the stat that 90%+ of coaches would have done exactly what Clawson did in that circumstance - NFL, College for sure HS and Pop Warner being the outliers. There were five issues associated with going for it and then setting up for the FG later with any of them ending the game. Getting a first down, getting a TD, being successful with the 2pt conversion, stopping FSU, and getting into FG range. Any of the first three not happening would end the game before getting to the last two.
Taking the FG first reversed the order - stop FSU, get a TD (where first downs are now almost a moot point) and making the 2 pt conversion. Allows you to stay in the game longer.
Yes, option one provides an opportunity to win in regulation (which coupled with the added opportunity of OT accounts for the increased win percentage) while option two guarantees the only way to win is in OT accounting for the reduced win percentage chance. However, it also provides more opportunity for the game to be over before getting a chance at a second score.