Board Thread:Tales from the Tardis/@comment-188432-20130325173913/@comment-1432718-20130415041030

It seems pretty clear to me. We don't use in-universe information to determine the inclusion of stories (if we did, we'd have to exclude nearly every Dalek story after The Daleks).

Therefore, we have to use out-of-universe information, and the author/publisher's intent has been used in the past, twice recently (for P.S. and Death Comes to Time).

If the author says it's not part of the DWU, there is precendent for us not including it here.