Nope. Not surprised. With Carl moving on in life and going to college, it was inevitable that he would be gone. I predicted this when Carl was giving food to the new guy in the woods and those walkers attacked him and he fell down. When he got up, he had that look like "damn, I got bit".
The only thing I hope is that they don't revisit the "crazy era" of Rick where he was seeing Lori everywhere. If they go that route with the 2nd half of this season, I may be done with the show. They are really repeating story lines over and over again. I think they have reached the end, and need to wrap it up.......