Go back and re-read this article, meathead, including the memos linked therefrom.  Specifically read in detail the February 7th memo from the MIGOP Credentials Committee to the RNC.  Said memo was drafted by Eric Doster, Legal Counsel for the MIGOP, and a highly-regarded election law attorney.  Just what do you think that the plain explanation of the rules is, then?

You're right to this extent: the rules were never changed . . . prior to the actual election.  Team Romney at that point seemed to believe that they'd walk off with a majority of the congressional districts, so splitting the at-large portion of the delegation was no big deal.