Despite all its successes, Steven Moffat has admitted that he feels guilty over reversing the outcome of the Time War in The Day of the Doctor.

Speaking in the new issue of DWM (#487) he says: “The Day of the Doctor was a success. Record ratings, awards, rave reviews. By any measure, it did alright. But two years later, I’m still haunted by the guilt.”

He continues: “I know some of you, including friends of mine, were upset that we reversed the outcome of the Time War. My defence, however feeble, is that given the chance, the Doctor would do exactly that. And it was his birthday, how could I deny him that chance? What could define him more? This man who always finds another way? And there he is, at every moment of his life, proving to himself – literally – that there is always a better path.

“Ah, well. My heart was in the right place, at least. But in this job you always need two!”