Showrunner I'll agree with you. But he also wrote some of the best episodes ever. Including the best, "Blink".
Under proper adult supervision, Moffat was a brilliant writer who could take an idea and make it come to life.
But he destroyed canon when he had free reign. And heck, he even destroyed the Weeping Angels, because he didn’t know how to do a story ARC. So we ended up with the bizarre story of the Statue of Liberty being a weeping angel, and somehow being able to walk through New York City, because apparently 8 million people all had better things to do than look up at this horrendous sound of a huge statue walking around.
And of course images of angels being able to become corporeal.
This year has sucked for story-telling, but it was kind of cool that the weeping angels made a return, in their more believable form.