There were all kinds of things that seemed just... off. The Doctor breaking out that he was 'old and thick' didn't seem right. Donna asking out of no where if they were going to shop. Where did that come from? There's a difference between witty lines and ones that are just out of place.

Hearing that Moffat pulled out an old script and dusted it off explains so much to me. This didn't feel relevant to the characters at all.

And I have no attachment whatsoever to the expedition group. If they all get caught in the shadows... oh well. Which is completely different from TIP/TSP where I actually bonded a bit that crew.

And TIP was a hell of a lot scarier, too. "Don't turn around," actually got to me. It still creeps me out.