Redshirts was a disappointment and shouldn't even be up for the award. Sadly, it will probably fight Captain Vorpatrilís Alliance for the top spot just because science fiction is so over-saturated with sequels and hack novels by popular authors. Was Osama a 2012 release? Because if not, it deserved a nod.
I think so. But it's already won the World Fantasy Award, so cry not for Lavie Tidhar.
Even with the presence of Crescent Moon though Hugo does seem to be weighted towards SF titles, which is fine given its history.