Nah, not at all. To me, the film was like The Bourne Supremacy. The ultimate reckoning/doing away with the bad guys/climactic battle was nifty, but not even the point of the film. It was about family and relationships, and I mostly bought the performances of the kids and their characters' relationships. I hated the oldest sister, but really enjoyed seeing the other 3 coming into their own.
Instead of a wizard, orcs, trolls, and whatever else forming into a party to go on a quest for a magical item (yaaaaaaaaaaaaaaaaawwwwwwn), it was about children torn from a comfortable life learning to forge a new one, both collectively and individually in a strange land. And unlike LOTR, there was actually a compelling antagonist to make their journey worthwhile.
I don't really care that some of the CGI was spotty, nor do I care about the ultra-obvious Aslan/Christ allegory. Did the story work? Yes. Did the characters work? Yes. All I needed.