So there is character development, but it starts right after I gave up on the show. I shall obviously have to try it again. Thank you for this insight. <3

And yes, you're probably right, my feelings about Moffat in general have coloured my view. I still think he's a good writer in his own sphere, but I don't think either nuWho or Sherlock were that sphere. I did very much enjoy the Tintin film...