A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,302
No extra bonus if you were swept
So apparently, even though I was swept to S100K on December 5, all my flights until January 1 were only eligible for a 75% bonus, because the terms say that since it's a 2014 status (unlike "early recognition"), it only applies to flights from January 1 to December 31 2014.
Not sure if anyone else flew after being upgraded in the December sweep, but if you did, that's why you didn't get full bonus miles.