The Azog didn't bother me, it was just some wheel spinning. And it was at least more interesting wheel spinning than the characters repeatedly surviving certain death. But I must say that the discovery that Thorin put his personal feelings above everybody else, and above his supposed determination to recover the dwarf home, wasn't very compelling.
As I say, I viewed it as rather obviously foreshadowing his fate. His disbelief in Bilbo wasn't compelling either, even if we viewers are supposed to dislike anyone who can't appreciate Our Hero.