I wonder if Smart/Diaz had been the overall winners in terms of points the Fed would send them to both Worlds and Olympics. I have a feeling they are trying to push them more.
I really don't know. If you listen to S&K's fans, they think Sara is being discriminated and if you listen to O&A's fans, they feel the same way about Adrian. I'm not close to anyone in Spanish FED, so I really don't have usefull information, all I have is an opinion.
Spain has two good ice dance teams, not excelent for a podium rightnow but maybe they could get a top 10 at some point. Both of them are very similar in their quality and a third one is comming so, in a couple of years, C&L will be competitive too. If I were the FED, my main priority would be to get a second spot at competitions, so I would try to push the team that can get it. But they are really similar, maybe O&A a little better technically but S&K have that "something special" (sometimes) that Sara&Adrian programs used to have (their FD this year, for instance). By now, they have to push both teams the best way they can, in order to get that second spot in the sort term and to facilitate international experience for everyone in the long term, because there is a long term here, there're are no ice dance coaches in Spain and those skaters could be the future coaches of spanish ice dance teams (if that's what they want).
I have my favorite team too and, as much as I am disappointed when my favorite doesn't win, whoever go to competitions is my team. I think that there's no point in looking for conspiracy theories, the only possible goal for the FED is to promote all their teams and, if nothing proves it otherwise, I think that's what they are trying to do... even if they make mistakes sometimes.