Also, there more interesting facet is the idea of social commentary about the importance of father figures in shaping great heroes like James T. Kirk or Spock. That's the thread the runs through 09 and in to STID that interests and inspires me. Also, there are plenty of nods to TOS throughout both of these films.
So it's like a postmodernist Shinzon thing: "if only you had had a father figure you wouldn't be an incompetent drunk douche of a captain!"
But, it was supposed to be new. It didn't have to adhere or demonstrate all the backstory. There was actually enough, given Spock's history with the Romulans he really was the only one who could serve as the liaison.
Like I said, it doesn't care at all - it's just blowing up planets for the cool special effects and cheap emotional effect.